Ischia is situated in the Tyrrhenian Sea and is the largest of the islands scattered over the Gulf of Naples. Its well-known bathing and spa resorts, curative sands and inexpensive hotels have made Ischia almost as popular as its enchanting neighbour, Capri. Ferries run between the mainland and Ischia Porto, the most modern part of the main town, which is also called Ischia. The old part, called Ischia Ponte, is a fishing village with a castle rising above it. The principal spas are the Antiche Terme and the Nuove Terme, which have radioactive waters containing salt, bromine and iodine. The north and west coasts are wild and impenetrable, while the south of the island has sandy beaches and is gentler and more accessible.Capri is situated in the south part of the Gulf of Naples, facing Sorrento and Positano. It is famous worldwide for the tourist and bathing resorts spread out along its coastline. Formerly the headquarters of imperial courts, the site of monasteries and a place of exile, its fame has grown over the centuries and is now a place of great natural interest and a destination for lovers of luxury and elegance. Amongst its most famous beauty spots must be included the little town of Capri, which is the capital of the island, the Blue Grotto, which can be reached from Marina Grande, and Villa Jovis from which Tiberius ruled the Roman Empire in the last years of his life. The most extraordinary feature of the island, however, is undoubtedly the famous group of steep crags – called the Faraglioni – standing in the sea off the east coast of the island.