Capri is an Italian island located in the Tyrrhenian Sea off the Sorrento Peninsula, on the south side of the Gulf of Naples in the Campania region of Italy. The main features of the island are the Marina Piccola (Small Harbor), the Belvedere of Tragara, the limestone crags called sea stacks that project above the sea, the town of Anacapri, the Blue Grotto, and the ruins of the Imperial Roman villas.