Austurengjahver

Austurengjahver is an active geothermal mud spring in Austurengjar, south of Kleifarvatn on the Reykjanes Peninsula. Austurengjar is one of the principal geothermal areas within the wider Krýsuvík system, where steam, hot ground and mineral-rich mud reveal heat rising through the active volcanic landscape. This is a natural geothermal feature, not a bathing spring. Visitors should keep away from boiling mud, steam vents and thin crusts and avoid stepping off established safe ground.

Story

Austurengjahver is part of a landscape where the surface gives only small clues to the heat below. Steam escapes through cracks, mineral-rich water alters the ground and mud bubbles where groundwater meets volcanic heat. Across Krýsuvík, these features shift over time as earthquakes and changes in underground water pathways alter where pressure reaches the surface. The mud spring is therefore not a static landmark. It belongs to an active geothermal system that also feeds nearby hot ground and springs around Kleifarvatn and Seltún. Visiting it offers a quieter look at the same processes that shape the peninsula's better-known geothermal sites.