Formed from volcano eruptions, Nisiros is a place of wild beauty. According to mythology, during the period of the Gigantomachy (war of the Giants) Poseidon (the god of the sea) plucked a rock from Kos and in anger threw it at the giant Polivotis with the intention of killing him. This rock, which crushed the giant, became Nisiros, and the half-dead giant shakes the earth every now and then with his groans, thus awakening the volcano.

From ancient times, the municipalities of Kalimnos were the central core of social life on the island with their own archives and nobility. In Kalimnos the sponge divers still dive into the deep waters of the Aegean sea to bring the "fruit" hidden beneath the waters, to the surface in their own traditional way. Traditions still play a strong role in this beautiful island in the Dodecanese complex. Tourism has now become another form of income for the Kalimnians as

Agathonisi is the north most islet of the Dodecanese islands complex. Today the population of the island is about 120 people. The oldest settlement is Megalo Chorio or "Big Village" with 80 inhabitants. This village has been built in such a way so that it is not visible from the sea, thus protect­ing it from pirates. Built in the same way and for the same reason is Mikro Chorio-'Small Village' with 20 inhabitants. The third and newest settlement is St. George with 20 inhabitants and is found in the inner­most part of the bay from which its name is derived.