In modern times Kythnos acquired a second name, "Thermia" (meaning “Warm”), due to the hot springs which are located in the picturesque Loutra bay, on the northeast side of the island.
There are two hot springs: The first is called St. Anargyroi and it is located in the spa of the area which attracts many visitors. The second one is called Kakavos Source. It is 50 m. far from the first one and its temperature reaches 52 degrees C.
The water of the hot springs helps the treatment of rheumatic, arthritic and gynecological diseases.
