Located about 6 kilometers (4 mi) south of Ibiza, in the Mediterranean Sea, Formentera is the smallest island of the Balearic Islands. Formentera is renowned for its pristine white beaches and the fact that nude sunbathing is allowed on most of its beaches. Joni Mitchell wrote her 1971 album Blue on the island while Bob Dylan once lived in the Cap de Barbaria lighthouse on the island. Author Matt Haig writes about visiting the island often in his twenties in Reasons to Stay Alive. The opening track of the King Crimson album Islands, Formentera Lady, is named after the island.