Area: 8.8 hectares.
Area of Outstanding Natural Beauty
Description and reasons for notification:
Porthleven is famous for the Giant’s Rock, a large erratic block of garnetiferous gneiss resting on an intertidal shore platform. The Giant’s Rock is the most striking example of its type on the south coast of England. Its exact origina and mode(s) of transport have generated considerable debate and carry important implications for Quaternary glacio-marine conditions and sea-levels on the Channel coast. Porthleven is also noted for cemented raised beach deposits preserbved in caves and notches, and head deposits on the cliff top.
Site Notified to Secretary of State on 27 June 1986.