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Leirhnjúkur Hike

By François · updated in June 202506/2025My rating

Key facts about the hike

Difficulty
Easy Hikes are rated from very easy to very hard: my difficulty scale
Duration
1h45 Estimated time, short breaks included (photos, water, snacks), picnic not included: how it is calculated
Distance
4.6km
Elevation gain
100m
Type of route
Loop
Maximum altitude
595 m
Vertiginous Five levels, depending on how exposed the route is: the levels in detail
No
Marked
Yes
Popularity
Moderate
Region
North
Start point
65.71320, -16.77461
Activity
Hiking

Hike overview

Leirhnjukur is an active volcano and one of the most impressive features of the Krafla caldera near Lake Mývatn. The area is one of the most active volcanic regions in Iceland. In 1975, a series of events known as the "Krafla Fires" shook the region, marking some of the most significant eruptions in the country's modern history.

As you approach Leirhnjukur, you will feel as though you are exploring a hostile world that seems to come from another planet. Smoke and steam rising from the ground add to the landscape's mysterious atmosphere. The cracks left by the volcano stretch nearly 20 kilometers, and some lava flows are still hot decades after the last eruption.

Map and elevation profile of the hike

Leirhnjúkur Hike

Difficulties of the hike

This hike is technically easy and does not present any particular difficulties. The trail is clearly marked with wooden posts and footbridges. There is virtually no elevation gain, making the route accessible to most people, especially families with children.

What you'll love

  • Otherworldly landscapes: Discover a hostile land where smoke and steam rise from the ground in an apocalyptic setting of black lava stretching as far as the eye can see.
  • A small geothermal lake with milky, pastel-blue waters nestled in the heart of the volcanic landscape.
  • Breathtaking panoramas: From the summit of Leirhnjúkur, take in the vastness of the Krafla caldera and its surrounding volcanoes.

Practical information

Parking

Free parking is available at the trailhead. Access via Route 863, just after the Krafla geothermal power plant.

Safety tip

Never stray from the marked trail. Some seemingly solid ground may conceal very hot geothermal areas.

Nearby attractions

Take advantage of your visit to discover the nearby Víti crater, with its spectacular turquoise lake, and relax at the Myvatn Nature Baths after your hike.

Fumerolles
Fumerolles
Geothermal lake
Geothermal lake
Lava fields as far as the eye can see
Lava fields as far as the eye can see
Smoke still rising from the ground
Smoke still rising from the ground
Lava field
Lava field
Lava field
Lava field
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur
Leirhnjúkur

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Printed from www.horizonrando.fr/en/iceland/leirhnjukur/