Ischia is a volcanic island in the Gulf of Naples in Italy. It is known for mineral-rich thermal waters. The thermal springs gush out at the Maronti beach, located to the south. To the east, Roman remains can be found on the seabed of Cartaromana beach. The beach overlooks the medieval Aragonese Castle, connected to Ischia by a stone bridge. Nearby, the 18th century Palazzo dell'Orologio houses the Museo del Mare, dedicated to the fishing tradition of Ischia.