An island of 16.5 km2. The main settlements on the island are Sipanska Luka and Su¥ura¥, situated in bays with the same names, and in the inland of the island are few smaller villages.

The ruins of the church of Saint Petar from the 16th century, the small church of Saint Ivan in Silovo selo, the early Catholic church of Saint Marija and the pre-Romanesque church of Saint Mihovil, are the monuments from the Middle Ages. Many feudal families from Dubrovnik built summer villas on the island, and the most famous are the summer villa of the Sorkocevic family from the 15th century, the Gothic duke's palace built above Sipanska Luka and the ruins of the summer residence of archbishops of Dubrovnik.