Karpathos is located southwest of Rhodes. With a length of fifty kilometers, Karpathos is, on average, between six and ten kilometers wide. When measured by its surface area, it is the second-largest island in the Dodecanese. It is a mountainous island. The main town of Karpathos is Pigadia, which is also the main port of the island.
The ancient Greek name was Potideo or Possidius. The sheer Kali-Limni mountain range (1215m) is, according to mythology, the birthplace of the Titans. This ridge divides the island into two areas, one being the semi-desert and sparsely populated north, and the other one being the well-irrigated and more-populated south.