Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
The Therma thermal baths, on the Greek island of Ikaria, offer open-air bathing in sulfurous water reaching 38°C. The site, valued for its wild, unadorned setting facing the Aegean Sea, remains simple and low-key.
Insider tip — Ikaria's Therma village is renowned for some of Europe's most radioactive thermal springs, but its outdoor pools emptying directly into the Aegean at 38°C are the real attraction. The informal open-air rock pools at the sea's edge are free and uncrowded at dawn. Ikaria's famous longevity is often attributed partly to regular thermal bathing by the local population.