There's a nice little beach--not in the least secluded, very popular with the islanders--on the south side of the lighthouse promontory, just in front of the Emerald Pavilion in the Old Palace grounds. It can make a good place for young kids to take a swim, or grown-ups who want to cool off after a thorough exploration of the palace grounds. You can get a fresh-water shower in the bathrooms at the entrance to the palace.