The Tradelière islet is an uninhabited emerged land belonging to the Lérins Islands. Culminating at 9.8 ft (3 m) above sea level and 590 ft (180 m) long, it extends east of Sainte-Marguerite Island, the largest in the archipelago. The Lérins Islands are administratively attached to the coastal town of Cannes in the Alpes-Maritimes department. They separate the Gulf of Juan to the east from La Napoule's by closing the Bay of Cannes to the southwest.