Located on the Reykjanes Peninsula, Gunnuhver is the name of a highly active geothermal area, with many mud pools, hot springs, and steam vents. The area is named after the largest steam vent, Gunnuhver. According to folklore, Gunnuhver is named after a troublesome female ghost Gunna. She was lured to a vent by a priest and fell into it . The geothermal area also has colourful clays and mineral formations. Gunnuhver is located next to the road 425 between Grindarvík and Reykjanesbær. The Reykjanes lighthouse can be seen from Gunnuhver. From the parking lot, it is a few minutes walk to a viewing platform in front of Gunnuhver and, from there, is a timber walking trail further into the geothemal area. Beware never to leave the marked timber trail.

Parking lot GPS: 63.819066, -22.682315