A small uninhabited island sits just off the coast a few kilometres north of Diamante, opposite the village of Cirella. It is barely 600 metres across and rises sharply from the sea, topped by the ruins of a Norman watchtower. The cliffs are honeycombed with sea caves that local fishermen will take you into for a small fee.
In summer, beach clubs at Cirella run a shuttle boat across to the island; outside July and August you will need to negotiate with a fisherman or rent a kayak. The water around the island is among the clearest on this stretch of the Tyrrhenian, with snorkelling that is decent though not exceptional. There are no facilities on the island itself — bring water.