You're sitting on the ground underneath a 13 tonne slab of stone supported on three sides by smaller stones.

On this exposed clifftop and the small island opposite stand the ruins of Tintagel Castle.

St Mawes Castle was built by Henry the Eighth as part of a chain of defensive fortresses to protect the South Coast.

Originally, the castle roof was used as another gun platform. The turret would have been used as a look-out.