Kassos, the most southern of the Dodecanese, is only 27 nautical miles northeast of Crete.
Its first inhabitants are thought to have been the Phoenicians. Homer mentions it in his catalogue of the Greek cities that took part in the Trojan War. Kassos is a mountainous island with a steep, rocky coastline and few beaches.
In the 18th century, Kassos established its own merchant fleet and grew rich from trade. It played an active role in the Greek War of Independence of 1821, earning the revenge of the Turko Egyptian armada which set fire to the island in May 1824 and subsequently slaughtered its inhabitants. Only a few survived.
Other villages include Agia Marina, set on a hill just one kilometre southwest of Fri and Arvanitohori, southeast of Agia Marina, nestled in the island's only valley.
Two kilometres from Agia Marina there is a cave called Sellai, 30 metres deep and 8 metres wide with impressive stalactites.
Swimmers will find pleasant beaches at Fri. Emborios, Ammouda and on the nearby islet of Armathia.