Southeast of the main square, a waterside promenade snakes its way around a series of bays to arrive at a 15th-century Franciscan monastery. An arched gateway leads into an elegant cloistered courtyard, which hosts occasional classical music concerts throughout the summer. There’s also a small museum, displaying a modest collection of sacral art, including a memorable painting of the Last Supper. A peaceful garden affords magnificent views down onto the sea.