In the Middle Ages, there was a watchtower on the site, known as Puig Musart, which kept watch over the north coast. In 1554, Charles V reinforced it with a wall and named it Fort Sainte Thérèse. In 1679, Vauban ordered its destruction and the present fort was built.
Today, it is a military barracks housing the Centre National d'Entraînement Commando, commonly known as the CNEC. Since 1964, soldiers have been training in a variety of exercises, including individual and collective daring courses, crossings, use of explosives, hand-to-hand combat, navigation and anti-tank close-quarter combat.
It belongs to the army, it is closed to the public.
