The 'Valley of Thor', a lush Highland nature reserve tucked between glaciers. Famous for its birch forests, braided rivers, and challenging access.
Story & Legend
A surprisingly green oasis protected by three glaciers (including Eyjafjallajökull), Thórsmörk offers a stark contrast to the surrounding black deserts. This nature reserve is hidden between Eyjafjallajökull, Mýrdalsjökull, and Tindfjallajökull, creating a unique microclimate that is warmer and greener than the rest of the South Coast. It is a hiker's paradise and the end point of the famous Laugavegur trail.
Geology & Science
The valley is filled with geological contrasts: black desert sands, braided glacial rivers, green birch forests, and moss-covered tuff mountains. The rock formations are jagged and covered in vibrant green moss due to the high rainfall in the valley.
Safety
DO NOT DRIVE HERE unless you have a modified Super Jeep. The Krossá river is famous for drowning standard 4x4s (like Dusters or RAV4s). Take the highland bus. The hiking trails (like Valahnúkur) are steep but well-marked.
Photo Tip
Climb Valahnúkur mountain (455m) for the best 360-degree view in Iceland. You can see the braided rivers below looking like silver veins in black skin. Sunset is spectacular as the light hits the Eyjafjallajökull glacier cap.
Insider Tip
Hike the Valahnúkur trail. It is a steep, heart-pumping climb that takes about an hour, but it offers the absolute best 360-degree panoramic view of the three glaciers surrounding the valley.
Best Time to Visit
July and August. The highland buses run regularly, and the hiking trails are mostly free of deep snow.
What to Bring
High-quality hiking gear, layers, and walking poles. The terrain is rugged, and the weather between the glaciers is completely unpredictable.
