Dramatic rhyolite mountains in the highlands with geothermal areas, colorful peaks, and excellent hiking
Kerlingarfjöll rises in Iceland's central highlands as a range of rhyolite peaks streaked with orange, red, and yellow mineral deposits, cut through by the Hveradalir geothermal valley where steaming vents and hot streams thread between the colorful slopes. Unlike the flatter volcanic terrain of Landmannalaugar further south, Kerlingarfjöll's landscape is more mountainous and dramatic, with hiking trails climbing between peaks that stayed largely covered by a small glacier until recent decades. A network of marked trails of varying length fans out from a small highland lodge, ranging from an hour-long loop through the geothermal valley to longer full-day routes higher into the range. A geothermal river near the lodge is warm enough for bathing after a day of hiking. Because the area sits along an unpaved highland road requiring a 4WD vehicle and is only accessible for a few months each summer, it remains far less visited than more famous highland sites, despite offering comparably dramatic scenery. The lodge provides the only accommodation and dining options in the immediate area, and most visitors either day-trip from a highland base or stay overnight to explore more of the trail network.
Weather through the year in Iceland
Best time Shoulder Worth avoiding
Average daytime temperature in °C. Figures are for Iceland.
Highlights
- Rhyolite peaks streaked in orange, red, and yellow
- Hveradalir geothermal valley with steaming vents
- Trail network from short loops to full-day hikes
- Geothermal river for post-hike bathing
- Far fewer visitors than Landmannalaugar
Tips for visiting
- Bring a 4WD vehicle for the unpaved highland access road
- Choose the Hveradalir loop for a shorter one-hour introduction to the area
- Pack for highland weather that can shift quickly even in summer
- Book the lodge in advance if planning to stay overnight
When to visit
Visit in July or August when the highland road is open and trail conditions are driest.
Accessibility
The unpaved access road and uneven highland trails make Kerlingarfjöll largely inaccessible for wheelchair users.
Frequently asked questions
How long does a visit to Kerlingarfjöll take?
A short geothermal valley loop takes about an hour, while longer routes into the peaks can take a full day.
Is Kerlingarfjöll worth it for kids?
The shorter Hveradalir loop is manageable for older children, but longer highland routes and the unpaved access road suit more experienced hikers.
Is photography allowed in the geothermal valley?
Photography is unrestricted, though visitors should stay on marked paths near hot springs and steam vents for safety.