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Glaros or Glaronisi is an island that belongs to the small east Cyclades. It lies approximately 0.6 nautical miles (1.1 km) south of Koufonisi and is only about five hundred metres east of Kato Koufonissi. Glaros is extremely small, flat, uninhabited and nearly barren. This island can be visited from Koufonisi only with a special arrangement with any of the local boatsmen.