The village must have taken its name after the ancient baths that operated at its edge. It flourished during the 19th century and the beginning of the 20th century. Among the Cycladic white houses, the four-story building of the girls’ school of the Ursulines stands out; it was built in the middle of the 19th century and in the beginning of the 20th century it had as many as 300 boarding students. Schools teaching carpet -making, sewing, and weaving operated. You will see handicrafts made by the girls in the rich collection of the exhibition that is open here during the summer.
The second important sight in Loutra is the Monastery of the Jesuits, built in the year 1846. The area is large and included the church of Agios Iosif and the residence of the monks, with bedrooms, a library, and a reading room. In the interior of the church you will admire mural paintings from the year 1920 and the statue of the Virgin from the year 1895. Old tools and implements from the 19th and the 20th centuries, as well as objects of worship, are exhibited in a well-built small museum in the basement.