The largest and many say most beautiful island in the Bay of Naples, Ischia is renowned for its curative spas. Ferries and hydrofoils connect Naples to Ischia Porto, the main town. Nearby at Ischia Ponte (connected to the main island by a foot bridge) are the magnificent Castello Aragonese and Guevara Tower. Forio on the island’s west coast, Lacco Ameno in the northwest and Sant’Angelo in the south are the liveliest resort towns. Casamicciola Terme in the north is one of Europe’s oldest spas.