Lastovo is a southern Dalmatian island in the Adriatic Sea, Croatia. Administratively it belongs to the homonymous municipality in the Ragusa-Narentana region. The island, not far from the Tremiti Islands, is home to a famous lighthouse built in 1839. The Croatian government has made the island, together with Cazza and the adjacent rocks, a natural park. The capital of the island is the homonymous center, located on the north-east coast.