Leros belongs to the Dodecanese. It lies 175 nautical miles from the port of Piraeus and it is located in the sea area among Patmos, Kalymnos and the Minor Asia coast. It has a surface of 54 km2 and its coastline has a length of 71 km due to its rich Horizontal Scroll. The shape of the island is lacy. It reminds us of a Chinese ideogram that has 7 natural roadsteads and two isthmuses. Geologically, it belongs to the sub-pelagic zone, having many rocks from transformed phylite in the north part and limestone in the south. The highest altitude level of the island can be found in the south part, on the peak of Skoumbarda (327 m). On the whole island, from its north to its south part, there are low hills. Among these hills, there are fertile valleys that are appropriate for the cultivation of fruit and vegetable products, citrus fruits, as well as olive trees.
The Mediterranean scrubland, including aromatic herbs (oregano, rosemary, thyme, savory, penny royal and lavender) and wild flowers (orchid, chamomile, St John’s wort, cyclamen etc.) are dominant on the island. There are also some crop lands, some pine forests planted by humans and some lines of eucalyptus trees. The island’s fauna includes a protected species of frog, the Bufo viridis (green toad), a protected species of turtle, the Testudo graeca, 5 kinds of lizards, 9 kinds of snakes and 3 little mammals, hedgehog, shrew and wild rabbit. The climate of the island is Mediterranean, marine and similar to that of the other Dodecanese islands.