The remains of William's solid 11th-century castle house an ex?­cellent collection of Euro?­pean painting in the Mus??e des Beaux-Arts.
The modern-day Musee des Beaux-Arts is located in the remains of an ancient castle.
To get there from the fertile farmland of the centre of the island you drive over substantial hills, alongside cliffs, and finally down to an unexpectedly placid sea.