Ischia is a volcanic island, rich in hot springs with sulfuric thermal waters gurgling up at different points across the island that have been popular since Roman times. The largest thermal spas are Poseidon, Negombo, and Castiglione. You have to purchase a ticket to enter these thermal parks and access about 30 different natural thermal baths at various temperatures. Free public hot springs are located in the Baia di Sorgeto, where you can also swim in sea water that has been warmed by hot springs that bubble up from the sea floor, and in Cartaromana. The most beautiful beaches on the island are Maronti Beach and the Bay of San Montano.
The Best Beaches on Ischia