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.
Brad, 54, who has been photographing the Kilauea Volcano, the most active on earth, for over 20 years, said:"It's such stunningly beautiful, powerful force. Being near an eruption is an awesome experience.You are never quite the same after seeing flowing lava." Picture: G. Brad Lewis / Barcroft Media 06/07/15- follow the red brick road