Fimmvörðuháls and Þórsmörk Hike from Reykjavík
Two glaciers, volcanic landscapes, and a hidden valley — three days of genuine Icelandic wilderness.
The Fimmvörðuháls and Þórsmörk hike is widely regarded as one of Iceland's most rewarding multi-day trails, connecting dramatic volcanic terrain with the sheltered birch forests and basalt peaks of Þórsmörk valley. This guided three-day experience departs from Reykjavík and takes you deep into a landscape shaped by eruptions, glaciers, and centuries of Icelandic mythology.
The route crosses the Fimmvörðuháls mountain pass, which sits between Eyjafjallajökull and Mýrdalsjökull glaciers. The trail passes lava fields formed during the 2010 eruption, dozens of cascading waterfalls, and snow-covered ridges that hold winter conditions well into summer. Each section of the hike offers a distinct character — from the raw volcanic plateau to the lush, wind-carved valleys below.
Þórsmörk, the final destination, is a nature reserve accessible only by foot or specially equipped off-road vehicles. The valley is framed by sharp ridges, river crossings, and an unusually dense concentration of vegetation for Iceland. It is named after the Norse god Thor and carries a quiet sense of remoteness that few places in the country can match.
Accommodation on the trail is provided at mountain huts, which serve as basecamp for the evening and a place to share the day's experience with other hikers. The pace is steady and manageable for walkers with a moderate level of fitness, though proper preparation and layered clothing remain essential given Iceland's changeable weather.
Tour Highlights
Hike the Fimmvörðuháls pass between two of Iceland's most active glacier systems, Eyjafjallajökull and Mýrdalsjökull.
Walk across lava fields formed during the 2010 eruption, a landscape that remains one of the most visually striking in Iceland.
Pass a succession of waterfalls on the ascent from the South Iceland lowlands toward the high mountain plateau.
Descend into Þórsmörk, a protected valley with moss-draped basalt formations, blue glacial rivers, and sheltered birch woodland.
Cross a high mountain pass that retains snow year-round, offering a stark and memorable transition between trail sections.
Stay overnight at mountain huts positioned at key points along the trail, with views of glaciers and the surrounding highland terrain.
Return to Reykjavík on the adventure bus from Þórsmörk, a fitting close to three days on one of Iceland's classic routes.
Itinerary
The first day involves roughly 1,000 meters of elevation gain as the trail climbs from the lowlands toward the mountain pass. The route passes moss-covered gorges, a series of waterfalls, and progressively wilder terrain. The day ends at a mountain hut with views across two glaciers, and on a clear day, the Atlantic Ocean is visible to the south.
The group crosses the high mountain pass, where snow is typically present throughout the year. The descent into Þórsmörk reveals the valley's distinctive colours — vivid green moss against dark basalt ridges and pale glacial rivers. After a river crossing, the group reaches the valley hut for dinner and overnight rest.
The final morning is spent exploring the valley in depth, visiting viewpoints and following trails through the reserve. After lunch, the group boards the afternoon adventure bus back to Reykjavík. Guests arrive in the capital with sore legs and a thorough experience of Iceland's highland interior.
What Is Included
Included
- Professional hiking guide throughout the 3 days
- Mountain hut accommodation (2 nights)
- Adventure bus return from Þórsmörk to Reykjavík
- Route planning and safety briefing
Not Included
- Meals and drinks (unless stated at booking)
- Personal hiking equipment and clothing
- Travel insurance
- Transport to the trailhead on Day 1
Important Information
This hike is rated moderate difficulty and requires a reasonable level of physical fitness. Participants should be comfortable walking long distances on uneven terrain and prepared for unpredictable Icelandic weather conditions at altitude.
Ready to Hike Fimmvörðuháls and Þórsmörk?
Secure your place on one of Iceland's most celebrated multi-day hiking routes. Small group sizes mean this experience fills quickly during the summer season.
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