Cap Juluca, Anguilla, still holds the prize for some of the world's sexiest bathrooms with added private walled gardens for drying off au naturel. Moorish by design, the hotel's idiosyncratic white domes are best at sunset when tinged pomegranate pink. Charlie Dimmock did the garden water features, but they can't hold a drop to the surreal blue of the sea and the Cap's famous beach, which is like walking on powdered silk.