A small island of granite rocks which probably owes its name to the elongated and sinuous shape. Serpentara is located four kilometers off the beaches of Villasimius, of which it belongs. Its surface of 134 hectares is uninhabited but populated by wild rabbits in the midst of lush and fragrant Mediterranean scrub, flown over by herons, Corsican gulls and shag, which make their nests here. It is not uncommon to come across dolphins near its coasts. In the northern part stand out large granite rocks, the Variglioni, which form natural pools in the sea in which to dive. While in the south there are clusters of yellow, gray and pink granite, shaped by the wind. The easiest access is C aletta d’Approdo, to the northwest. On the highest point (about 50 meters) stands the tower of San Luigi, built during the Spanish domination to spot Saracen ships that infested the coasts of the Sarrabus.