A Glacial Erratic rests on the wave cut platform at Pargodonnel Rocks , below Tregear Point -
(between Parc Trammel Cove and Portleven Harbour).
The Giant's Rock / Moonstone is of a type of garnetiferous gneiss which is not found anywhere else in the UK .
It may have been tranported here by Glacial action during the last Ice Age.
Location: SW 6236.2571