Thorsmork (Þórsmörk): Valley Between Three Glaciers

Þórsmörk

Last reviewed March 3, 2026By the Iceland.org Travel TeamEditorial policy

Iceland's most famous valley, named after the Norse god Thor. A green highland valley between three glaciers: Eyjafjallajökull, Mýrdalsjökull, and Tindfjallajökull.

Region
South Iceland
Best time: June – September
Thorsmork is known for its hiking, including the Laugavegur Trail, and is accessible only by 4x4 or on foot because of multiple river crossings. The valley is a protected nature reserve with birch forests, wildflowers, and glaciers on three sides.
Sources and last reviewed
Last reviewed: 2026-03-03

Multiple river crossings are dangerous, so use modified super-jeeps. Weather changes rapidly. Register travel plans at safetravel.is.

Pages are reviewed for practical usefulness, source quality, and volatile claims before publication.

Laugavegur Trail
55 km

Multi-day trek from Landmannalaugar to Thorsmork

Surrounding Glaciers
3 glaciers

Eyjafjallajökull, Mýrdalsjökull, Tindfjallajökull

Best Season
Jun–Sep

Accessible only during summer months

Access
4x4 only

River crossings require super-jeeps

Volcano
Eyjafjallajökull

The 2010 eruption reshaped the landscape, and trails now cross the new volcanic terrain

Huts
3 Mountain Huts

Básar, Langidalur, and Húsadalur are the accommodation options in the valley

Key Highlights

Laugavegur Trail

Iceland's best-known hiking trail, 55 km from Landmannalaugar

Three Glaciers

Set between Eyjafjallajökull, Mýrdalsjökull, and Tindfjallajökull

Lush Vegetation

Birch forests, wildflowers, and moss-covered ground in a glacial valley

Stakkholtsgjá Canyon

A narrow canyon with a waterfall at its end

Valahnúkur Viewpoint

Wide views of the valley and surrounding glaciers

River Crossings

Glacial river crossings that require modified super-jeeps

How to Get There

  • River crossing required: take a modified super-jeep bus from Hella, Hvolsvöllur, or Seljalandsfoss
  • Reykjavik Excursions and Trex operate daily summer buses crossing the Krossá river
  • Do NOT attempt river crossings in a standard rental car: glacial rivers are dangerous
  • Approximately 150 km from Reykjavik; super-jeep transfer takes about 3 hours total
  • Alternatively, hike in from Skógar via the Fimmvörðuháls trail (25 km, full day)

Best Time to Visit

  • Late June to August: Only accessible period, all trails open, midnight sun, 8-15°C
  • July: Peak season with the most reliable weather and greenest vegetation
  • Early September: Last chance before access closes, autumn colors in the birch
  • October-May: Inaccessible by vehicle due to river conditions and snow
  • June: Snowmelt can make rivers higher, so check conditions with bus operators before booking

Planning help

Thorsmork FAQs

Quick answers with safety notes where it matters.