south-iceland · Iceland
Fjaðrárgljúfur Canyon
About Fjaðrárgljúfur Canyon
Fjaðrárgljúfur is a stunning 2-kilometer long canyon, up to 100 meters deep, carved by the Fjaðrá river over thousands of years since the last Ice Age. The serpentine canyon features dramatic curves, waterfalls, and lush moss-covered cliffs. A walking path along the canyon rim offers breathtaking views.
History & Background
Fjaðrárgljúfur Canyon in South Iceland was carved over thousands of years by the powerful glacial rivers that characterize Iceland's landscape. The canyon reveals layers of geological history in its walls — from ancient lava flows to sedimentary deposits, each layer telling the story of eruptions, floods, and ice ages. Many of Iceland's canyons were formed during catastrophic glacial floods (jökulhlaups) that occurred when volcanic eruptions melted glacial ice, releasing enormous volumes of water. These floods could move millions of tons of rock and reshape the landscape in days. Historical accounts in the Icelandic annals document many such events, connecting geological processes to human experience.
Did You Know?
- ✔Iceland's canyons were carved by powerful glacial rivers over thousands of years
- ✔Many Icelandic canyons feature dramatic columnar basalt formations
- ✔Some of Iceland's most spectacular canyons are hidden gems, less visited than famous waterfalls
- ✔Canyon hiking in Iceland often requires careful attention to weather and water levels
Tours Near Fjaðrárgljúfur Canyon
Best-rated Iceland experiences — book with free cancellation
Why Visit
Marvel at the dramatic geological formations at Fjaðrárgljúfur Canyon
Did You Know?
Some of Iceland's canyons were formed in days by catastrophic glacial floods (jökulhlaups) that moved millions of tons of rock
The Troll of Reynisdrangar
The dramatic sea stacks at Reynisdrangar, visible from many points along the South Iceland coast, are said to be trolls turned to stone. According to legend, two trolls were trying to drag a three-masted ship to shore when they were caught by the first rays of dawn. Sunlight is fatal to trolls in Icelandic folklore, and they were instantly petrified, becoming the towering rock pillars that stand in the sea to this day. On stormy nights, some locals say you can still hear the trolls groaning as the waves crash against them, forever frozen in their midnight labor.
Hidden Gems Nearby
Rock Layer Reading
The canyon walls display layers of geological history — each stripe represents a different eruption or era.
It's like reading Earth's diary, with lava layers alternating with sediment deposits spanning thousands of years.
River Sounds
Find a quiet spot to sit and listen to the river that carved this canyon — it's been at work for millennia.
The sound of flowing water in a canyon creates natural acoustics that are both dramatic and deeply calming.
Wildflowers
In summer, look for wildflowers growing in sheltered spots along the canyon walls.
The canyon creates a microclimate that supports plant species not found in the exposed landscape above.
Practical Information
Best Time
Summer (June-August) for safe hiking conditions
Duration
1-2 hours
Access
Accessible by gravel roads; some require short to moderate hikes.
Frequently Asked Questions
Is hiking required to see the canyon?▾
Some canyons can be viewed from above without hiking, while others require a trail walk for the best views.
Is it safe to visit in winter?▾
Trails can be icy and slippery in winter. Use proper hiking boots with good grip and check conditions beforehand.
