Kythnos Loutra

Loutra sits on the northeastern coast of Kythnos, about five kilometres from the island's capital, Chora, and takes its name from the thermal baths that have drawn visitors here since antiquity. Two mineral springs feed the village: the iron-rich, mildly radioactive Kakavos spring, which emerges at around 52°C, and the saline Agioi Anargyroi spring, cooler at roughly 38°C and heavily mineralised. The site has been valued for its natural harbour and fresh water since at least the Mesolithic period, and the first organised bathing facility was built here in 1782 under Ottoman rule, with the present spa building completed in 1857 to a design by the architect Christian Hansen.

For much of Kythnos's history, Loutra rather than Merichas served as the island's main port, and it still keeps a small marina and fishing shelter alongside the handful of tavernas and clubs that give the village a livelier evening atmosphere than the rest of the island. Its population has always been modest, numbering only in the dozens at recent counts, and the pace stays unhurried outside the peak summer weeks. Sailors following a wider Cycladic itinerary will find Loutra a low-key stop; many gulet cruises in Greece call in here to combine a short walk to the springs with a quiet overnight anchorage before continuing on to busier islands.