The thermal springs are the only ones in the Cyclades and they are actually two in number.
The first one – named Agioi Anargiroi is located inside the spa facilities, while the second one- named The spring of Caucasus- is 50m from the spa and its temperature reaches 52o C.
It has been proved that the water of the springs is indicated for the treatment of rheumatism, arthritis, and gynecological diseases.
The spa had ever been visited by King Othon and his wife Amalia.