White, time-worn, gently curving cliffs plunge into an intense blue sea. The beach of Mangiabarche is found on the island of Sant'Antioco, in the territory of Calasetta, not far from the town's three beaches: Le Saline, Sottotorre and Spiaggia Grande.

With only a small amount of sand, and crystal clear sea in the summer, this is a splendid place to dive or fish. In the winter, the waves become majestic. The jewel of Calasetta faces onto a rock, Punta Mangiabarche, topped by a small, solitary lighthouse placed to protect (sometimes unsuccessfully) boats from getting trapped on the semi-submerged rocks, which create a somewhat menacing fascination. In fact, the beach itself is named for its reputation as a danger to sailors and boats.