Ischia is one of the main thermal centre of Europe because of its volcanic origin.
Water sources, Fumarole, mud baths are almost in every part of the island thanks to qualified and stocked thermal centres.The Miraculous Water of Ischia could cure different diseases, especially cutaneous illnesses. The most important and know thermal parks open to public are CASTIGLIONE, NEGOMBO, POSEIDON and NITRODI.