The Romans chose Cavallo as a penal colony. It’s remote, has minimal harbour facilities and is nigh on impossible to find on a map: the perfect conditions for today’s A-list habitués. The secret spilt out in the 1970s when Catherine Deneuve and Petula Clark would beach up by speedboat. The late Roberto Cavalli was part owner of the tiny marina that opened on the private island’s southern tip a decade ago. He and his beloved dog Lupo regularly strolled the silken sands, greeting guests such as Paris Hilton and Alicia Keys. Island transport is by mountain bike, golf buggy, or on one of the horses kept by the discreet island hotel Les Pêcheurs. The hotel can also provide passing yachts with anything from a sushi platter to a full-blown beach party catered by a private chef.
Getting there: accessible via a leisurely cruise from Corsica.