The walk is available through the iWalk Cornwall app for Apple and Android for £3.29 which each include everything listed here.
This removes worries about getting lost by tracking you using GPS, reminding you when you need to follow the next direction and warning you if you wander off the route.
To install on your phone, search the app store for “iwalk cornwall” to download the (free) app. Then either use it to scan the code at the top-right of the page to locate this walk or search for the walk title in Walks Shop > Search All Walks.