Circular walk from Trebarwith Valley to Backways Cove and Trebarwith Strand
  1. Head out of Jeffrey's Pit onto the road to Trebarwith Strand; turn left and follow the road downhill until you reach the drive to Fentafriddle on the left, marked with a Public Footpath sign.

    Jeffrey's Pit, located at the top of the road to Trebarwith Strand, is an old slate quarry and was still working in the early 20th century, closing in 1928. Alf Burrell, who lived in Trewarmett and died in the 1970s, started work there as a boy, making tea using the water from the stream. The cutting sheds were on the opposite side of the road (now a house), and as you walk down the road to the beach, the slate tips are walled up on your right. The slate tips cover the stream, which re-emerges below them to continue its path down the valley.

  2. Turn left up the track to Fentafriddle until you reach a waymark in a tunnel through the bushes on the right, just after the bend in the track.

    Fentafriddle is a group of farm buildings half-way up southern side of Trebarwith Valley. Fentafriddle was once a mill, fed by the spring and, later, powered by a donkey. In Cornish, Fenter means "spring" and friddle is thought to be a corruption of frosyel meaning "gushing". The settlement dates back to mediaeval times, mentioned in records of 1437. Until the early 20th Century, it was part of the estate of the Earl of Wharncliffe. Many of the farm buildings have been converted into luxury holiday accommodation, though the land around them is still farmed.

  3. From the waymark, follow the footpath through the tree tunnel and over a stile into a field. Follow along the right hedge until you eventually reach a stone stile over a wall near the top of the field.

    Blackthorn and hawthorn trees both grow in similar places but in each season there are different ways to tell them apart.

    In spring, blackthorn is one of the first trees to flower. The white blossom appears before the leaves in April. In warm weather, the leaves may quickly catch up and this is when it can get mistaken for hawthorn, which produces leaves before flowers. However, there are a few other ways to distinguish the flowers: blackthorn pollen is orange whereas hawthorn is pink, fading to black. Hawthorn petals overlap each other whereas blackthorn is more "gappy".

    In summer, the leaf shape can be used to tell them apart. Blackthorn leaves are a classic leaf shape with slightly serrated edges. Hawthorn leaves have deep notches dividing the leaf into several lobes a bit like oak.

    In autumn, pretty much all hawthorn trees have small red berries, even the windswept specimens on the coast. Blackthorn trees may have purple sloes, but not all the trees fruit each year. Some years seem to result in a lot more sloes than others.

    Hawthorn trees are often a little bigger than blackthorn, especially in harsh environments such as on the coast. Blackthorn tends to form thickets whereas hawthorn are typically distinct trees. Hawthorn bark is usually shiny whereas blackthorn is dull. The thorns on hawthorn tend to be shorter (less then 2cm) and point slightly forwards on the stem. Blackthorn has longer spikes that stick out at right angles.

  4. Cross the stile and bear left slightly across the field to a gate on the other side of the field, beneath a telegraph pole.

    The Ramblers Association and National Farmers Union suggest some "dos and don'ts" for walkers which we've collated with some info from the local Countryside Access Team.

    Do

    • Stop, look and listen on entering a field. Look out for any animals and watch how they are behaving, particularly bulls or cows with calves
    • Be prepared for farm animals to react to your presence, especially if you have a dog with you.
    • Try to avoid getting between cows and their calves.
    • Move quickly and quietly, and if possible walk around the herd.
    • Keep your dog close and under effective control on a lead around cows and sheep.
    • Remember to close gates behind you when walking through fields containing livestock.
    • If you and your dog feel threatened, work your way to the field boundary and quietly make your way to safety.
    • Report any dangerous incidents to the Cornwall Council Countryside Access Team - phone 0300 1234 202 for emergencies or for non-emergencies use the iWalk Cornwall app to report a footpath issue (via the menu next to the direction on the directions screen).

    Don't

    • If you are threatened by cattle, don't hang onto your dog: let it go to allow the dog to run to safety.
    • Don't put yourself at risk. Find another way around the cattle and rejoin the footpath as soon as possible.
    • Don't panic or run. Most cattle will stop before they reach you. If they follow, just walk on quietly.
  5. Go through the gate and follow the left hedge to a gateway.

    Buzzards breed once they reach 2-3 years old. During their breeding season in spring, male buzzards create spectacular aerial displays to impress females by soaring high into the air and dropping suddenly towards the ground. The birds then pair for life.

  6. Go through the gateway and walk along the left hedge until you pass a water trough (bathtub!) and reach a pair of metal gates adjacent to the first of the buildings.

    The trees along the left hedge have been sculpted by the salt-laden winds from the Atlantic.

  7. Go through the smaller (waymarked) gate beside the building and follow the path through a sequence of metal gates to a wooden gate ahead.

    Nettles are often found near human habitation, much to the displeasure of many humans. Humans generally remove dense vegetation such as tree cover, leaving open ground that fast-growing nettles can rapidly colonise. Food waste from humans and droppings from livestock boost phosphate levels in the soil which nettles require to thrive. Grazing animals also leave nettles alone, munching away competing vegetation instead.

  8. Go through the gate and follow the path until it emerges onto a lane.

    There are two types of ivy leaf. Those on creeping stems are the classic ivy leaf shape with 3-5 triangular lobes - they grow towards shade to find a tree to climb up. However, more mature ivy plants grow aerial shoots with a completely different (teardrop) leaf shape. These are the shoots that bear the flowers and fruits and are typically located in a sunny spot such as on an upright ivy bush or top of a rock face. The reason for the different shapes is that the larger, multi-lobed leaves are able to catch more light in shady areas whereas the smaller, stouter leaves are more resistant to drying out.

  9. Turn right onto the lane and follow it to a T-junction. Turn right at the junction and follow the lane a short distance to a track on the left with a public footpath sign.

    The settlement of Trebarwith was recorded in the Domesday survey of 1086 as Treberbet. The name is from the Cornish word perveth and means "middle farm". The name of the nearby beach - Trebarwith Strand - was taken from this small farmstead, but the large, sandy beach has become far more well-known than the place from which its name originates. In fact just about everyone uses "Trebarwith" to refer to the beach and distinguishes the settlement as "Trebarwith Village".

  10. Turn left down the track marked with a public footpath sign and go through the kissing gate on the left of the gate. Follow the track across the field to a waymark at a fork in the track.

    Just to the left of the track, an overgrown building can be seen which was a watermill powering a large threshing machine.

    A watermill powering a large threshing machine was once located near the start of the track from Trebarwith Village to Backways Cove. The 20ft diameter water wheel, which can still be seen in the undergrowth, was connected to a drive shaft which ran (and still remains) under the road, and powered a threshing machine in a stone barn at Trebarwith Farm, which prior to this, had been powered by horses. The threshing machine allowed the previously time-consuming manual task of separating wheat and barley grains from the stalks and husks to be automated, saving large amounts in labour costs.

  11. At the waymark, go through the left-hand gateway and follow the track through any metal gates to where it bends to the right and you reach a gateway on the left just after the bend.

    During the warmer months, you may well see red-brown cattle grazing the fields here.

    The cattle breeds known as Devon were also the traditional breeds used in Cornwall until recent years. The South Devon breed, affectionately known as "Orange Elephant" or "Gentle Giant", is the largest of the British native breeds: the largest recorded bull weighed 2 tonnes. They are thought to have descended from the large red cattle of Normandy, which were imported during the Norman invasion of England. The other breed, known as "Devon Ruby" or "Red Ruby" (due to their less orange colouration), is one of the oldest breeds in existence, with origins thought to be from pre-Roman Celtic Britain.

  12. Go through the gateway on the left and follow along the fence to pass an opening and reach a waymarked gate.

    Although Devon cattle are now classified as beef cattle, they were originally also used for dairy and would have been the original producers of milk for Clotted Cream.

    Cornish clotted cream is described as having a "nutty, cooked milk" flavour and now has a Protected Designation of Origin (it must be made with milk from Cornwall). The unique, slightly yellow colour is due to the high carotene levels in the grass in Cornwall.

    Traditionally, clotted cream was created by straining fresh cow's milk and letting it stand in a shallow pan in a cool place for several hours to allow the cream to rise to the surface. It was then heated, either over hot cinders or in a water bath, before a slow cooling. The clots that had formed on the top were then skimmed off with a long-handled cream-skimmer.

    Clotted cream is similar to Kaymak (or Kajmak), a delicacy that is made throughout the Middle East, Southeast Europe, Iran, Afghanistan, India and Turkey. It is possible that it was introduced to Cornwall by Phoenician traders who ventured to the area in search of tin.

  13. Go through the waymarked gate ahead and continue ahead across the field to reach a gateway in the middle of the far hedge.

    Between Tregardock and Backways Cove lie the remains of Treligga Aerodrome (HMS Vulture II). Both the observation/control tower and the reinforced hut near the sea (towards Backways Cove) are still standing, as are the accommodation and service huts near Treligga village. The control tower has quite recently been repaired and converted into accommodation.

    Before the Second World War, HMS Vulture II was used as a glider site. However the Admiralty requisitioned 260 acres of land in late 1939 for the purposes of constructing an aerial bombing and gunnery range. Unusually, the entire operation at HMS Vulture II was staffed by the Women's Royal Naval Service.

    On 16 September 1943, an American B-17 Flying Fortress was forced to make an emergency landing at HMS Vulture II. The pilot, Capt Jack Omohundro, had ignored a red flare warning him to keep clear. The plane was chronically short of fuel and running on three engines after a raid on U-boat pens at Nantes in France. The bomber had left its formation to try and preserve what little fuel it had left. Spotting the tiny Treligga airstrip, he skilfully landed "wheels-down" just 50 yards short of the Wrens quarters.

  14. Go through the gateway and follow the path across the field to a gate opposite.

    Bracken is both poisonous and carcinogenic to many grazing animals which will avoid it if at all possible. Eating bracken is not recommended as it is thought that the carcinogenic properties may also apply to humans based on the circumstantial evidence that Japan, where young bracken fronds are a delicacy, has the highest levels of stomach cancer in the world.

  15. Go through the kissing gate next to the gate and follow the path to a waymark on the right-hand side of the stream.

    The river valley to the left is a hanging valley, cut short of sloping into the sea due to erosion of the cliffs by the powerful Atlantic waves.

    The valley above Backways Cove is rich in wildflowers and heathland butterflies. Notably a species of wild chamomile grows here which is rare in the rest of the country. There is a story that a cow once went missing for 3 days at Backways Cove and reappeared staggering drunkenly after gorging on chamomile. A chemical within chamomile is known to be an intoxicant in animals if ingested in large quantities, so there may be some truth in this!

    The path, leading uphill to the right, goes to the slate quarries.

    Coastal slate quarries are confined to a small area of about five miles either side of Tintagel and relatively little is known about their history. In order to work the vertical cliff face, strong points were built from stone above the working areas. From these, ropes were dropped down the quarry face. Men were lowered down the faces on these ropes to split blocks of slate from the face. The slate was hauled up the cliff face on these cables which were wound using "horse whims" - capstans powered by horses or donkeys walking around a circular platform. The stone was split and shaped on "dressing floors" on the cliff top, originally covered with sheds. The remains can be seen as level terraces and are marked by screes of waste rock on the cliff below. Splitting was (and still is) done with a bettle (hammer) and chisel, hence the name of the pub in Delabole.

  16. Keep left to follow the path along the stream to a wooden footbridge.

    To get down to the beach, cross over the stream and make your way carefully over the rocks. They can be slippery when it's wet so it's only advisable in dry weather. The rocky beach of Backways Cove is the result of slate quarrying combined with natural erosion.

    The shore of Backways Cove is covered in boulders from the slate quarrying that took place along the cliffs and the cove itself has been enlarged from its original natural shape by the quarrying. The cove is surrounded by high cliffs and the only access is a path cut into the rocks along side the stream. The stream percolates through the boulders on the beach and there's quite a bit of slippery weed on some of the boulders. Beyond this is a reef that stretches all the way to Gull Rock and rock platforms either side almost meet to make the cove a lagoon, leaving just a narrow opening. In winter, storm waves breaking over the reef create sea foam which is driven into the cove by the westerly winds where it collects, trapped against the high cliffs and caught in wind vortices created by the cliffs. The high cliffs also mean the cove is often in shade, particularly in the morning and in winter.

    Possibly as a result of this and its bleak rocky shore, Backways Cove features in "The International Directory of Haunted Places":

    "Backways Cove, a North Cornwall inlet just up the coast from Trebarwith Strand, is still haunted by many unidentified presences who are thought to be the spirits of shipwrecked sailors whose bodies washed up there after they drowned. Numerous ships were torn apart on the jagged rocks offshore, and the shadowy spirits of their crew are still trying to make it to shore."

    It's theoretically possible that wreckage from a vessel grounded on the reef around Gull Rock might be trapped against Dennis Point and wash ashore at Backways Cove but historical accounts of this actually happening are thin on the ground.

  17. After exploring Backways Cove (via the path leading towards the sea), return to the footbridge and then go up the steps to follow the path a short distance to where it forks. Keep left at the fork to follow the path up the headland to reach a hairpin bend in the main path with a smaller path continuing to the left.

    A tale of Backways Cove was recounted by a folklore enthusiast called Kath:

    Many years ago a man with two sons farmed in the vicinity, and on his death left his entire estate to his eldest son, cutting out the younger one without a penny. The younger son went away wracked with jealousy that fomented over time to be an obsession until, convinced that he had been cheated of his birthright he set out to wreak revenge on his elder brother. One night he crept onto the farm and set fire to the buildings. The blaze took hold and the entire property was razed to the ground. The ruins of this once prosperous farm may still be seen near Backways - a few stones from the farmhouse and outbuildings were all that remained. Only in the morning did he discover that his brother had died the day before - and left the entire estate to him.
  18. Turn right to stay on the major (upper) path and follow it to where the well-worn path bends sharply to the left.

    The carpets of tiny blue flowers on the coast during April and May are the appropriately-named spring squill, which up close is a star-shaped pale blue flower with a dark blue stamen. They achieve their early flowering by storing energy over the winter in a bulb so they can be the first flowers out on the cliffs before they become overshadowed by larger plants. They thrive in locations which are beaten with wind and salt-laden spray which they are able to tolerate but other plants, which might otherwise out-compete them, cannot.

    There are two very similar looking members of the daisy family that are both known as "chamomile". English chamomile (also known as Roman chamomile) has hairy stems and is the one used for chamomile tea. German chamomile has smooth stems and higher levels of essential oils so this one is used for chamomile-scented pharmaceuticals (shampoos etc). Pineapple weed is related and is sometimes known as "false chamomile" or more confusingly as "wild chamomile" (even though it isn't chamomile and normal chamomile is also wild!).

    English chamomile was once common in Britain but it has declined (due to land clearance and changes to farming practices) to now being classified as Vulnerable. The Southwest is now one if its last strongholds.

    The small ridges in steeply-sloping fields are known as terracettes and are caused by soil creep and their formation is accelerated by animals using them as tracks.

    When the soil gets wet, it expands and particles are lifted up at right angles to the slope. When the soil dries out, it contracts, but the particles fall vertically under gravity, landing a millimetre further downhill from where they started. Over a long period of time, the soil gradually creeps downhill.

  19. Turn left to stay on the well-worn path and follow this to a waymark beside the fence near the top of the headland.

    Heathers and heaths are members of the Ericaceae family. The formal definition of a heather is a member of the Calluna genus within this family whereas heaths are members of the Erica genus. Bell heather is actually an Erica and therefore technically not a heather but a heath.

    During stormy weather, sea foam is driven into Backways Cove by the wind and vortices form against the sheer cliffs resulting in small tornadoes of sea foam.

    Sea foam (also known as "spume") is formed due to organic compounds known as surfactants present in seawater. Under turbulent conditions, the surfactants form persistent bubbles which float to the surface, stick to each other through surface tension and are driven onshore by the wind. The surfactant compounds themselves arise from processes such as the offshore breakdown of algal blooms.

    On beaches, sea foam can conceal deep pools and gullies with an apparently flat, uniform surface. Tread carefully, especially on beaches you don't know well, to avoid walking off the edge of a precipice or vanishing into icy cold water.

  20. At the waymark, stop to admire the view and get your breath back, then follow the coast path to a gate.

    Looking back across Port Isaac Bay, the headland on the far side is The Rumps. The island off the end is Newland. The Mouls (also known as Puffin Island) is less clear as it's directly in front of the headland from this angle.

  21. Go through the kissing gate next to the gate, and bear left on the path towards the rock outcrop. Then bear right to follow the path around the headland and along the fence until you reach a corner in the fence.

    Gull Rock lies approximately 500 metres offshore from Trebarwith Strand and has given its name to RR Gordon's crime thriller set in the area. It is made of a very hard volcanic material that has withstood the sea whilst the slate around it has been worn away. On the seaward side, where a chunk of the rock has cracked off, the tightly folded volcanic rocks within can be seen.

    Recently the rock has turned green during the spring and summer due to rock samphire colonising the side facing the beach which is sheltered from the westerly winds, helped by fertiliser provided by the seabirds also colonising the sheltered side of the rock.

    In the 1800s, the rock at Trebarwith (or "Trebarrow" as it was known then), was known as Otterham Rock, or Rocks, acknowledging the rocks to the side of the main rock which protrude a small amount from the water. Below the surface of the water, these are part of an extensive reef.

  22. Keep left along the fence until you reach a flight of steps.

    In the spring, it's possible to use the wildflowers as a compass. On the Backways Cove side of the point, spring squill and thrift grow on the south-facing slope facing the sun. The north side facing Trebarwith Strand gets much less sun so shade-loving plants such as bluebells and red campion grow here.

  23. Descend 170 steps to a reach a level area of path.

    There are spectacular views of Trebarwith Strand and Penhallic Point on the way down. Make sure you stop walking to admire the view (or read this!) and look where your feet are going when descending the steep steps.

  24. Continue on the path to descend a flight of 33 steps, then follow the path to a waymark just before a stile.

    The headland on the far side of the bay is Penhallic Point and the one you are now standing on is known as Dennis Point.

    Dennis Point is thought to be a corruption of the Cornish word dinas meaning "castle". An area on Penhallic Point opposite is also known as "Dennis Scale" which is thought to have similar origins. Clifftop forts on top of headlands such as this were common in the Iron Age. However no evidence has so far been found that there was a fort on either headland, so it remains an unsolved mystery. Whether there's any connection to the old name Trebarrow used for Trebarwith Strand is also not clear. The name "Dennis" crops up elsewhere in Cornwall such as Dennis Hill at Padstow, which is thought to get its name from the rocky outcrop on the hill that looks a bit like a fort.

  25. When you reach the waymark, bear left and cross the stile. Follow the track to the Port William pub to reach a small path with a coast path sign departing to the right.

    The main building of the Port William Inn is recorded in its present location on OS maps from the 1880s but no use as a public house is recorded in this period. The more recently-added outdoor terrace and conservatories offer spectacular views of the beach and coastline for weary walkers to enjoy some well-deserved refreshment. The interior is decorated with various trophies recovered from ship wrecks such as brass propellers, lanterns and even half of a rowing boat!

    A track shown on the 1880s maps ran past the buildings all the way to Port William beach and this was still usable in the 1980s. The 1973 film "Malachi's Cove" was filmed on the track and the beach. Since then, a cliff fall has buried part of the track near the beach and more recently a section of the track closer to the pub has been undermined by the sea so it is now closed to the public.

  26. Follow the signposted Coast Path down to the road at Trebarwith Strand.

    Trebarwith Strand is in the centre and is the lifeguard-patrolled area. It's sandy on the left and, to the right side, there are more rocks including some good rock pools. The large pool beside the rocks on the right side of the beach is known as "Horse Pool" from when horses were used to transport slate and sand, and this provided somewhere for them to cool off from their heavy work.

  27. From Trebarwith Strand, walk up the lane from the beach until you reach the large Council car park on your left (after the smaller private car park opposite the road to the Port William).

    The leftmost beach in the bay is Port William which is strewn with rocks except at the lowest point of the tide. Strong currents around Dennis Point make this a dangerous place to swim. The cliffs of the small point separating Port William from Trebarwith Strand are unstable and there have been a few cliff falls in recent years.

  28. Turn left into the Council car park and head to the top-left corner to where a ramp leads down into a meadow.

    Cornwall County Council was established in 1889. In 2009, Cornwall's six district councils and the County Council were merged into one single body known as Cornwall Council. In 2012, the highways (and countryside) department within the council was split into a separate limited company known as CORMAC. In 2015, a larger group of private companies was created known as CORSERV which also includes Cornwall Housing, Newquay Airport and The Cornwall Development Company. The group is still wholly owned by Cornwall Council.

  29. Go down the ramp and cross the meadow to a path leading upwards from the opposite corner and follow this to a stile.

    Plantains' ability to colonise compacted soils and survive trampling makes them useful for soil rehabilitation. They can also help to make grazing fields more drought-resistant. The high levels of tannins in plantain are disruptive to intestinal parasites in livestock so that the need for anti-worming medicine is reduced.

  30. Cross the stile and follow the path uphill via a gate and stile until you reach some steps leading up to the left and another path continuing to the right.

    Two different species of bindweed are found in Cornwall. Hedge bindweed has quite large pure white trumpet-shaped flowers and is also known as bellbind due to the shape of the flowers. Field bindweed (also known as creeping jenny) has smaller trumpet-shaped flowers with a striking pink-and-white-striped pattern which wouldn't look out of place in a sweet shop.

    The deeply cut holloway from Treknow to Trebarwith Strand provided access to the harbour and a route for the pack animals to bring lime-rich sand from the beach to neutralise the acidic soil.

    Some of the Public Rights of Way originating from mediaeval times appear as sunken paths, also known as holloways from the Old English hola weg, a sunken road. There are different reasons for the lane being lower than the surrounding land. In some cases it was simply erosion caused by horses, carts and rainwater over hundreds of years. There are also examples where ditches formed between banks as a boundary between estates and then later adopted as a convenient location for travel or droving animals.

  31. Climb the steps and continue ahead towards the telegraph pole to reach a gate next to a signpost.
  32. Go through the gate and turn right onto the lane. Walk up the lane until you reach a junction to the right.

    Treknow (which in Cornish means "the valley place") is perhaps one of the oldest "industrial" settlements in the area dating back to Mediaeval times, based mainly on slate quarrying with some early metal mining. The physical structure of Treknow - its bowl-like formation, in parts literally carved out of the rock - could be the result of early slate excavations. It was in direct response to the needs of industrial workers, in the expanding quarrying industry of the early 19th century, that the rows of cottages were constructed. The use of slate for roofs, chimneys, walls and paving, which contributes so greatly to their character, is further testimony to the dominant role of the local industry.

  33. Turn right and follow the lane to a T-junction with the main road.

    Red valerian is also known as kiss-me-quick, fox's brush and Devil's or Jupiter's beard and can be seen flowering in early summer in hedgerows near the coast. The plant is originally from the Mediterranean and is thought to have been introduced as a garden plant roughly around the Tudor period. It has since become naturalised and the brightly-coloured flowers provide nectar for bees, butterflies and moths. Over time the base of the stems can get as thick as a small tree trunk which can lever apart the walls in which it can often be seen growing.

    Red valerian occurs with three main flower colours: about 50% of plants are deep pink, 40% are red and around 10% have white flowers. Very pale pink also occurs but is much rarer. These distinct forms are an example of flower colour polymorphism. The red pigment within the flowers is an anthrocyanin compound and the different colours are due to different amounts of the pigment.

    Slate is formed when clay or volcanic ash is compressed under millions of years of deposits to form shale, and then the shale is subject to a (relatively low, in geological terms) heat and pressure transforming it into a harder, less-crumbly rock - slate. The heat and pressure can arise from an intrusion of molten magma into the sedimentary rocks or from the friction associated with collision of tectonic plates. Like shale, slate also has a layered structure, splitting into thin sheets which have proven ideal for shedding water from roofs without collapsing them under the weight of stone. However, the direction that the slate splits into layers is often not the same as the direction of the layers that were laid down in the original shale. This is because a reorganisation of the mineral components occurs during the metamorphosis, based on the direction that the pressure was applied. In other words, it's possible to have stripey slates.

  34. Turn right and follow the main road a short distance until you reach a junction with Trelake Lane on the left.

    The "herringbone" style of walling built with tightly packed alternating diagonal slate courses, is unique to Cornwall's heritage.

    It is known locally as "Curzy Way" or "Kersey Wave", based on the Cornish word kersy which means "reeds", perhaps referring to a square weave pattern. It is also sometimes known as "Jack and Jill" which is likely to be based on the falling down part of the nursery rhyme.

  35. Take the left turn up Trelake Lane and follow the lane for just over half a mile until it ends in a T-junction with the main road in Trewarmett.

    The vetches are a family of wildflowers that is a sub-group within the pea and bean family. Their pretty purple flowers are quite like mini sweetpea flowers. The leaves are also very distinctive, organised in a neat row either side of the stem. Common vetch is a wildflower but is also sown by farmers in some grazing fields to improve the nutrition for ruminants and to introduce more nitrogen into the soil.

    The house named Tasgwyn Eglos used to be the Methodist Chapel.

    Methodist services were held in the cottages which was attractive to women who needed to look after young children, and in the many villages where the parish church was more than a mile away or at the top of a steep hill. This helped to make Methodism very popular in Cornwall and through the late 18th and the 19th Century, many chapels were built in the centre of the villages.

  36. Turn right on the road and follow it until you reach a small lane leading to the right just past Park Farm.

    Park Farm was derelict in the 1970s; when it was converted into holiday accommodation, the fields still contained many farming implements of the 19th century including horse-drawn ploughs and carts. Exactly how far the farm here dates back is unknown, though an axe-head from the Bronze Age was found amongst a pile of stones in the garden. The name is from the Cornish word Park which means "field".

  37. Just past Park Farm, bear right down the small lane and follow this until it rejoins the main road at the top of Trewarmett Hill.
  38. At the junction, turn right and walk down the right-hand side of Trewarmett Hill, on the pavement where available, to reach the junction to Trebarwith Strand.

    The engine house on the top of the hill on your left was part of the Prince of Wales Quarry.

    The engine house in Trewarmett is the only one preserved in North Cornwall. It was built in 1870 and the beam engine, installed in 1871, was used to drive a wire ropeway to haul slate, as well as pumping water out of the quarry pit (which is now a lake). You can safely wander around inside (there are grilles covering the pit which once contained the beam engine).

  39. At the bottom of the hill, bear right to stay on the path and follow it alongside the road towards Trebarwith Strand. After about 100 metres, cross the road into the parking area at Jeffrey's Pit.

    Cornwall's iconic engine houses were built to house huge beam engines - a type of steam engine with a pivoting beam. This configuration was particularly suited to powering pumps to stop the quarry pits and mines from flooding as water trickled into them from above. Inside the engine house, steam from a boiler would push up a piston, causing the beam to tilt downwards, pushing the pump down into the shaft. The steam would then be shut off and cold water would be used to condense the steam within the piston back into water, creating a partial vacuum. Atmospheric pressure then pushed the piston back down into the vacuum, raising the beam and lifting water out of the shaft. The valves to apply the steam and cold water were mechanically automated, maintaining a steady rocking motion of the giant beam.

Rock samphire has been a popular wild food since Celtic times. It has a strong, characteristic, slightly lemony flavour and recently has become more well-known as a flavouring for gin. It was very popular as a pickle in 16th century Britain until it almost died out from over-picking in the 19th Century. Consequently, it's currently a protected plant but is now making a good comeback. In Shakespeare's time, a rope was tied to a child's ankles and he was dangled over the cliff to pick the rock samphire that grew in crevices and clefts in the rocks.

The completely unrelated but similar-looking golden samphire also grows around the North Cornish coast. The leaves look almost identical, but the daisy-like yellow flowers in summer are a giveaway, as rock samphire has tiny green-white flowers that look more like budding cow parsley. Golden samphire is edible, but is inferior in flavour to rock samphire; it is also nationally quite rare in Britain.

Also completely unrelated is marsh samphire (also known as glasswort) which looks more like micro-asparagus. This is what typically appears on restaurant menus or in supermarkets as "samphire".

The small blue pom-pom-like flowers have common names which include blue bonnets, blue buttons, blue daisy and Iron Flower but it is best known as sheep's bit. The name is said to originate because sheep enjoy eating it. Confusingly, it is sometimes known as "sheeps bit scabious", yet it is not at all closely related to the group of plants normally known as "scabious".

Sheep's bit flowers are rich in nectar and are a favourite with bees and butterflies. The flowers are highly reflective to ultraviolet which is thought helps to attract insects. The reason that insects can see UV but we can't is that insects' eyes have colour receptors that are tuned to different wavelengths than ours but also the lens of the human eye blocks UV light.

Blackberries are closely related to raspberries and technically neither is a berry but an aggregate of many individual tiny fruits, each containing a tiny stone like a miniature cherry.

Blackberries are high in vitamin C, K and antioxidants. The seeds, despite being a bit crunchy, contain omega-3 and -6 fatty acids and further enhance blackberries' "superfood" status.

According to folklore, you should not pick blackberries after Michaelmas Day (now known as Old Michaelmas Day, roughly corresponding to 11th October) as this is when the devil claims them. The basis for this is thought to be the potentially toxic moulds which can develop on the blackberries in the cooler, wetter weather.

A project to analyse blackberries picked from busy urban roadsides vs quiet rural lanes found that there was a slightly elevated level of lead in the blackberries from busy roadsides which is thought to have accumulated in the soil when leaded fuel was in common use. Surprisingly, commercial blackberries from supermarkets also showed higher levels of lead than the wild blackberries from rural lanes.

An impressively purple blackberry, pear and ginger chutney can be made with blackberries stashed in the freezer. Simmer 500g blackberries, a few chilli flakes, 4 chopped pears and a finely-chopped 8cm piece of fresh ginger until the liquid reduces. Add 150ml distilled or white wine vinegar, and sugar to taste (amount will depend on tartness of the blackberries). Reduce a bit longer until the desired "gloopy" consistency is achieved and finally season with a little salt to taste to balance the sweetness.

To make blackberry wine, combine 2kg blackberries + 4 litres of boiling water in a plastic container with a lid. Once the water has cooled to lukewarm, mash blackberries and add red wine yeast and pectic enzyme (blackberries contain pectin so this is needed to stop the wine being cloudy). Cover for 4-5 days then strain through muslin.

Transfer the liquid to a demijohn and add 1kg of sugar. Top up with a little more water to make it up to a gallon. After fermentation, the wine should clear by itself; in the unlikely event that it doesn't, use some finings. Rack off from the sediment and bottle; it's worth allowing the wine a year or two to mature as it massively improves with age. As a variation, you can add 500g of elderberries and increase the sugar content for a more port-like wine which will need a couple of years longer for the elderberry tannins to mellow out.

Water pepper, as the name implies, grows on wet ground such as on the margins of lakes (it's also known as marsh pepper). It's relatively late to appear, not really getting going until June.

Another of water pepper's common names is "smartarse". As Emma Gunn points out in her foraging book "Never Mind the Burdocks", this is nothing to do with being clever: in the past, the dried leaves were added to bedding to drive away fleas etc. and the name comes from rolling over on a leaf in the wrong way.

Water pepper leaves can be used as a herb and has a lemony flavour similar to sorrel followed by heat which is a little like chilli. Its used in Japanese cuisine, particularly with fish. The young shoots are used to garnish sushi or sashimi.

The plant is unpalatable to livestock but is eaten by some insects which has given rise to a Japanese saying which transliterates to "Some insects eat water pepper and like it" but is used more like "There's no accounting for taste".

Purple loosestrife usually grows in damp places such as next to a stream and can be spotted from spikes of bright purple flowers in August-September.

The common name is thought to be the result of a 16th century mistranslation of the Latin name. Attempts were then made to make "loose strife" fit with reported uses for the plant to try to rationalise the wacky name. The Latin name is now thought simply to refer to the name of city in Thrace (Greek-Turkish border) which perhaps had the plant growing along its watercourses.

It has been suggested that a law must have been passed in Cornwall whereby all offshore rocks must be renamed "Gull Rock"! There are examples at:

It seems to be a relatively recent phenomenon as many reports from the 1800s use different names for the rocks now named Gull Rock.

In the local dialect, the word "orestone" was used to describe such offshore rocks. An object was described as "orey" if covered in seaweed (oarweed being another name for the commonest kelp found around the Cornish coast).

Hemp agrimony is a fairly tall plant that grows in damp places and produces large number of tiny pink flowers from July to September, hence an alternative common name of "raspberries and cream". The flowers are rich in nectar so bees and butterflies are often found on them. It's one of the later plants to be in flower in the hedgerows so it keeps bees and butterflies going during the early autumn.

It is unrelated to hemp and also to plants in agrimony family. The reason for "hemp" in common name and "cannabinum" in the Latin name is because the leaves look a bit like cannabis. A name of "holy rope" has also been used for it which may be another reference to hemp.

Thrift is a tough evergreen plant which grows on sea cliffs and consequently it's the county flower of the Scilly Isles. To survive in this environment it needs to be able to withstand drought and salt-laden winds. Its long, thin leaves and hairy flower stems have evolved to minimise water loss.

The name "thrift" has been suggested to arise from the plant's tufted leaves being economical with water in the windy locations where it is found. It's common all along the Cornish coast and in April-June produces pale pink flowers, hence its other common name: "Sea Pink". The plant grows in dense circular mats which together with its covering of pink flowers gives rise to another less common name: "Ladies' Cushions".

Thrift is tolerant of metals such as lead and particularly copper in soil so it is able to colonise coastal mine tips. It has been suggested that the heavy metal tolerance may be partly down to not transporting much dissolved metal up the shoot of the plant (since thrift grows in a desiccating salty environment, there is less water to transport it than in many other plants). However thrift also has mechanisms to sequester metals and excrete them through its roots and leaves.

Thrift is known as a "hyperaccumulator" of copper: it can concentrate copper by over 1000 times more than other neighbouring plants. This makes it potentially useful to clean up contaminated land but this be done over many years. In principle it's even possible to mine for minerals by concentrating them in plants and then extracting them (known as "phytomining"). It's currently far from economical to do so for copper but for rarer high-value metals it may become economical, possibly in conjunction with chemical soil additives to increase bio-availability.

Grasshoppers are thought to be the oldest living group of chewing herbivorous insects. They date back to the early Triassic around 250 million years ago before the dinosaurs.

Grasshoppers jump by using the stiff cuticle within their legs which functions a bit like a longbow. Muscles gradually build up stored energy by bending the elastic structures in the leg over quite a long period (around half a second) and then this is released suddenly.

Grasshoppers and crickets look fairly similar. The main visual difference is that crickets tend to have long antennae and grasshoppers have shorter ones. However, only grasshoppers are active during the day so these are ones you are likely to encounter when walking.

The noise that grasshoppers make is created by rubbing their hind legs against their wings. Crickets do something similar at night but just by rubbing their wings together.

Grasshoppers "sing" for a number of reasons which include staying connected socially and sometimes simply because they are happy. Bad weather leads to grumpy grasshoppers and less singing.

Some species of grasshopper (known as locusts) can undergo a transformation in behaviour and colour.

Normally these are solitary and behave just like any other grasshopper. We occasionally get some hopping alongside the more common meadow grasshoppers in the UK.

However, if their hind legs are touched frequently (several times per minute over the course of a few hours), which in the wild occurs when the number of grasshoppers starts to increase, a hormone is released. This causes a major change in behaviour: the grasshoppers eat much more, reproduce faster and swarm.

The wheatear can often be seen on the coast during the summer month as it nests in rock crevices or rabbit burrows but returns to Sub-Saharan Africa every winter.

For a long time, the wheatear was thought to be a member of the thrush family but genetic studies have revealed they are actually members of the (Old World) flycatcher family which also includes stonechats.

The name "wheatear" is a 16th-century linguistic corruption of "white arse", referring to the bird's prominent white rump.

Stonechats are robin-sized birds with a black head and orange breast that are common along the Cornish coast all year round.

The name "stonechat" comes from the sound of their call which resembles stones being knocked together.

During the summer months, stonechats eat invertebrates. As temperatures drop and there are not so many of these about, they make do with seeds and fruit such as blackberries. Quite a few die in cold winters but this is offset by their fast breeding rate during the warmer months.

A similar-looking bird called the whinchat is also present in the summer but this can be identified by a white stripe across its eye. Both stonechats and whinchats can often be spotted perching on dead sticks or brambles protruding above gorse and heather, and consequently the term "gorse chat" or "furze chat" has been used locally to mean either species. For a long time, stonechats and whinchats were thought to be members of the thrush family but genetic studies have revealed they are actually members of the (Old World) flycatcher family.

Silverweed is a creeping plant which is fairly easily recognised by its silver-green toothed leaves. The silver colour is caused by hairs on the leaves. Yellow flowers with 5 petals appear in late June. It is said that the Romans used it as insoles for their shoes on long marches.