
moderate
3–4 hours
Moderate fitness—able to walk 20–40 minutes over uneven ground and climb short hills.
Drive across lava fields, hike a short geothermal trail, and end the afternoon soaking in a naturally tempered hot river. This buggy-to-baths combo delivers off-road thrills and a soothing natural soak just outside Reykjavík.
The engine coughs, the buggy shudders, and the world opens up into basalt ridges and bright green moss. You leave the silhouette of Reykjavík behind and drive across a lunar-like lava field where the ground still remembers fire. Steam rises in the distance—thin fingers of white that mark the Hengill geothermal system—and the guide eases the buggy down a riverbed, the tires throwing up pebbles and peat. By the time you park at Ölkelduháls the high mountains cup the valley and the air smells faintly of sulphur and mineral warmth.

Store your swimsuit, towel, and electronics in a waterproof bag—there are no secure lockers at the river.
Trail to the river includes rocky and occasionally muddy sections; ankle-supporting hiking shoes are best.
Temperatures change quickly between ridge and valley; a windproof outer layer helps when parked on high ground.
Bring biodegradable wipes if needed and pack out all trash to protect the thermal ecology.
The Hengill volcanic system has shaped human settlement and hydrothermal use here for centuries, with hot springs historically used for washing and heating.
Stay on marked trails, avoid introducing detergents to geothermal waters, and carry out all waste to minimize impact on fragile moss and microbial mats.
Provide grip and ankle support on rocky, sometimes muddy trails.
Necessary for the hot river soak; towel for drying off afterward.
Keeps valuables and spare clothes dry during the ride and at the river.
Blocks cold winds on the ridge and keeps you comfortable between driving and bathing.
fall specific