Hallmundarhraun Lava Field

Hallmundarhraun flowed from an eruption of one of the volcanoes lying under the Langjokull glacier around the year 930. Consisting of dark basaltic rocks covered in soft moss, there are wonderful formations, frozen ripples, crevasses, and Surtshellir cave located underneath. The ancient lava flow is named after a cave-dwelling giant from the Saga of Grettir the Strong.