Kalymnos is located between Kos and Leros in the south-eastern Aegean Sea and belongs to the Dodecanese Islands prefecture. The area is 111.14 square kilometres and is the fourth largest island in the Dodecanese prefecture. The name of the island used to be Kalynda then changed to Kalymna and finally Kalymnos. Also known as the island of the Sponge Divers due to its residents’ sponge fishery avocation. Leros, Patmos, Pserimos, Astipalea, Telendos, Agathonisi and Lipsi also belong to Kalymnos. The capital of Kalymnos is Pothia where most of the inhabitants live. Chora is the second largest residential area and the former capital of the island.