Our touring holiday in Cornwall brought us to Mount Saint Michael at Marazion, near Penzance. Like its more famous relative Le Mont Saint-Michel it sits offshore and is reached by a rock causeway when the tide is out. We made the steep ascent to the castle home of the St Aubyn family who still live there today. It's open for tours and there is plenty to see.
If you do visit and make the short tour of the castle then look out for the framed relics of Napoleon which include a lock of his hair and a remnant of coat sleeve.
You can check out things to see and do at Marazion here.