Kerlingarfjöll: Hot Springs and Rhyolite Mountains
Kerlingarfjöll sits in the heart of Iceland’s Highlands, a mountain range where geothermal heat meets rhyolite rock to create one of the most colourful landscapes in the country. The Hveradalir geothermal valley is the centrepiece — steaming fumaroles, bubbling mud pots, and hot streams winding between ridges of orange, red, and yellow rhyolite. It feels like walking on another planet.
Getting to Kerlingarfjöll requires driving highland F-roads that are closed to regular vehicles and open only during summer months (roughly late June through early September). A private tour in our Toyota Land Cruiser eliminates the stress of navigating these rough roads yourself. Your guide knows the current road conditions, river crossing depths, and the best hiking trails within the area.

Why a Guided Highland Tour Matters
The Icelandic Highlands are remote, unpopulated, and lacking mobile phone coverage in many areas. Weather can change within minutes, turning a sunny valley into a foggy, disorienting landscape. Having an experienced guide is not just about convenience — it is about safety. Your guide carries emergency equipment, monitors weather updates, and knows the terrain well enough to adjust the route on the fly.
This is one of three Highland day tours we offer. If Kerlingarfjöll’s geothermal scenery excites you, you may also want to explore the colourful mountains of Landmannalaugar or the glacier-flanked valley of Þórsmörk. Our guide to why private tours are best in the Icelandic Highlands explains the practical reasons in more detail.

Frequently Asked Questions About Kerlingarfjöll
How difficult is the Kerlingarfjöll hike? The hike is rated challenging with a 14km trail through varied highland terrain. Good fitness is required, but your guide adjusts the pace and route to match your abilities.
When can you visit Kerlingarfjöll? The highland roads to Kerlingarfjöll are only open from late June through early September. Exact dates depend on snow and road conditions each year.
What makes Kerlingarfjöll special? Kerlingarfjöll offers a combination of colorful rhyolite mountains and active geothermal features found nowhere else in Iceland. The Hveradalir valley feels like walking on another planet.
Do I need special equipment for this tour? Sturdy hiking boots, warm layers, and rain gear are essential.