East of Reykjavik, Iceland lies the mountain, Hengill. Hengill was formed from a Palagomite tuff, it is a central volcano and has a giant magma chamber beneath it. When thick basalt lava flows cool, they form hexagonal cracks, called columnar joints. These can be found also in Ireland & Scotland.
The location of Iceland at the famous edge of the arctic circle and its setting at one of the most active volcano spots makes the tourism industry even popular than it was ever before. It is currently one of the most impressive