Points of interest along this route:

Carn Marth (big hill to our south, which may be visible) / Trelissick / King Harry Ferry – every 20 mins: 30, 50, 10 past the hour @ £2 contactless pay on ferry / River Fal / Lost gardens of Heligan may be more interest to support drivers / Pentewan (one route suggested a naval base had been at Pentewan, hence one reason for going down into the village rather than across a gravel or un-made up track near the top of the hill) / St Austell / Eden Project / Fowey / St Catherine’s Castle, Fowey / Fowey to Bodinnick ferry @ £2.80 / Bodinnick / Polperro, which support drivers could visit / Looe

Main sources for this section: Route created in Komoot

Guidance, risk, responsibility 

Route map above ©OpenStreetMap