Thorsmork (Þórsmörk): Valley Between Three Glaciers

Þórsmörk

Last reviewed March 3, 2026By the Iceland.org travel deskEditorial 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.

Want to experience this in person?

Iceland.org is a tour agency as well as a guide — compare tours, or tell us your dates and a travel agent will build the trip around them.