Volcano Lagoon – Nisyros Caldera

Nisyros is a volcanic island in the Aegean Sea, part of the Dodecanese group between Kos and Tilos. Its caldera, which occupies the central and southern portion of the island, is the dominant geographical feature of Nisyros and one of the most dramatic volcanic landscapes open to visitors in Europe. The main active crater, Stefanos, has a walkable floor some 260 metres across where fumaroles vent continuously and the ground is warm underfoot. Excursions from Kos by ferry to Mandraki, then a short road transfer, reach the crater rim in under two hours from Kos Town harbour.