Head to San Domino for walks, grottoes and coves. It has a pristine, marvellous coastline and the islands' only sandy beach, Cala delle Arene . Alongside the beach is the small cove Grotta dell'Arene , with calm clear waters for swimming.
You can also take a boat trip (€12 to €15 from the port) around the island to explore the grottoes: the largest, Grotta del Bue Marino , is 70m long. A tour around all three islands costs €15 to €17. Diving in the translucent sea is another option with Tremiti Diving Center . There's an undemanding, but enchanting, walking track around the island, starting at the far end of the village.
