Kythnos is a Cycladic island between Kea and Serifos. It is 3 hours from the port of Piraeus and just 1 hour and 40 minutes from the port of Lavrion. It administratively belongs to the South Aegean region and since the 12th century it is also known as “Therma”. This name is due to the hot springs that exist up to today in the bay of Loutra. The baths of Kythnos were enjoyed by King Othon and Queen Amalia (1837-1862). Kythnos has an area of ​​99.3 square kilometers, a population of 1456 and a coastline of about 104 kilometers, with 92 coves, coves and beaches, most of which are accessible by road. There are two mainland villages on the island, Chora or Mesaria and Dryopida or Sullaka. There are also three main seaside settlements: Merichas-the main port-, the Baths with thermal springs and Panagia Kanala with the church of the same name. Kythnos has daily connections with Piraeus and Lavrion port.




coasts, islands, remote

Degree of urbanization


population of 1456

Village Solutions

Kythnos Smart Island

The project demonstrates the potential of islands to deliver integrated interventions for the local infrastructure that, while contributing to climate change mitigation and adaptation, will enable, by extending its tourism season and strengthening the interdependencies and symbiosis among economic activities, the transition to a diverse, circular and sustainable economy. For doing so the project foresees the active involvement and engagement of the local community and entrepreneurship which will be a catalyst for its successful implementation but also for the sustainability of its impact. Eventually, “Kythnos Smart Island” constitutes a local development vision and strategy for the local municipality bridging the integrated, smart and efficient infrastructure management with local economic development all while creating a unique identity as green destination.

Environment | Mobility & connectivity

Contact Information

DAFNI Network of Sustainable Greek Islands,

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