Karkar Island
Papua New Guinea · Oceania

About
Karkar Island is an oval-shaped volcanic island located in the Bismarck Sea, about 74 kilometres (46 mi) off the north coast of mainland Papua New Guinea in Madang Province, from which it is separated by the Isumrud Strait. The island is about 25 km (16 mi) in length and 19 km (12 mi) in width. In the centre is an active volcano with two nested calderas.
Adapted from Wikipedia (CC BY-SA)。Photography via Wikimedia Commons.