During our trip to Cornwall we visited the village of Tintagel on the north coast. Tintagel and its castle are associated with the legends of King Arthur - see the wikipedia page for more information.
The Camelot hotel has incredible views of the Celtic Sea
The castle is partly on the mainland and partly on an island. To get to either part involves climbing a lot of steps. On the mainland:
On the island:
The castle ruins:
Merlin's Cave was very difficult to photograph, but I think this photo shows the atmosphere:
The cave is open at both ends and is only viewable at low tide. We just managed to make a quick stop there before the tide blocked it off.