Kithnos is a peaceful island, which, still clear from mass tourism, prides itself on still maintaining some of the most beautiful unspoilt rocky coastline and picturesque beaches, some of which can be accessed only by boat. Kythnos is one of the most beautiful islands of the west Cyclades, with a pure cycladic scenery and a tradition in architecture, easily seen in the many picturesque alleys and churches of the island, and a beautiful capital perched on the top of a steep hill.
Kithnos, the island's capital 5 Km. from Merihas, the port of the island, is perched on a hillside plateau. A typical Cycladic village, it is noted for its beautiful churches with their fine wood-carving, sanctuary screens and icons. At the monastery of Our Lady 'tou Nikous', which stands on an attractive hill, the feast of the Ascension of the Virgin Mary on 15 August is observed with the traditional festivities.
Slightly south is Driopida, the island's former capital, a picturesque village, very typical of the island. In the north-eastern part of the island lies the harbour of Loutra, renowned for the curative power of its thermal springs, already known in the Middle Ages.
Kythnos is an island of great archaeological interest. Maroulas, near Loutra, is the oldest settlement in the Cyclades where remains of circular constructions have been found. They were used as places of residence. In Maroulas, five tombs have also been found. The settlement is dated back to the Mesolithic Period that is between the 8th and 7th millennium B.C.