About Seljalandsfoss
Experiencing Seljalandsfoss
Seljalandsfoss is undeniably one of Iceland’s most iconic natural landmarks. Fed by the meltwater of the famous volcanic glacier Eyjafjallajökull, the Seljalandsá River plunges dramatic 60 meters (197 feet) over ancient coastal cliffs into a tranquil pool below.
What truly sets Seljalandsfoss apart from hundreds of other Icelandic waterfalls is the wide cavern hollowed out behind the water column. A slippery foot trail encircles the base, enabling adventurous visitors to walk behind the cascade for an otherworldly 360-degree vantage point. Standing behind the torrent as the golden afternoon sun filters through the mist is an unforgettable sensory experience.
Exploring Nearby Gljúfrabúi
Just a short 10-minute walk north along the cliff face lies Gljúfrabúi (the 'Canyon Dweller'), a secret waterfall hidden almost entirely inside a narrow rock cleft. Stepping across mossy rocks into the hidden chamber reveals a roaring waterfall plummeting through a skylight above.
- Gear Advice: Full waterproof jacket, waterproof pants, and sturdy hiking boots with excellent grip are strictly required if walking behind Seljalandsfoss or wading into Gljúfrabúi.
- Safety Tip: In winter months, the path behind Seljalandsfoss routinely freezes over and closes due to falling ice hazards. Always respect safety barriers.
History
Geological Evolution
Although Seljalandsfoss now overlooks a lush flat expanse of agricultural land stretching toward the Atlantic Ocean, millions of years ago this precipice formed part of Iceland's actual coastline. Post-glacial rebound and sea level changes caused the ocean to recede, leaving behind towering basalt sea cliffs that today form the edge of the southern highlands.
The Volcanic Connection
The source river, Seljalandsá, originates beneath the ice cap of Eyjafjallajökull—the stratovolcano that famously disrupted global air traffic with its massive ash plume eruption in 2010. The surrounding landscape retains subtle traces of ash sediment integrated into the fertile soils, serving as a reminder of the dynamic tectonic activity shaping South Iceland.