“Europe's most powerful hot spring pumps out 180 litres of near-boiling water every second, and its heat is piped up to 64 kilometres away to warm two whole towns.”
About Deildartunguhver
Deildartunguhver has been a known wonder in the Borgarfjordur district for centuries, but its modern significance is practical. In the late 20th century engineers tapped its colossal flow to supply district heating, building long insulated pipelines to carry the hot water to Borgarnes and Akranes, turning a natural spring into critical public infrastructure.
Deildartunguhver in west Iceland is the most powerful hot spring in Europe, gushing a remarkable 180 litres of boiling water every second at around 97 degrees Celsius. Steam billows constantly over the bright red and green algae-stained rocks, and the sheer volume of near-boiling water surging from the ground sets it apart from Iceland's many quieter springs.
Deildartunguhver in west Iceland is the most powerful hot spring in Europe, gushing a remarkable 180 litres of boiling water every second at around 97 degrees Celsius.
Heating Two Towns
This is not just a sight but a vital piece of infrastructure. The spring's enormous flow of hot water is harnessed and piped to heat homes, one line running about 34 kilometres to Borgarnes and a longer one some 64 kilometres to Akranes, among the longest hot-water pipelines of their kind. So a single spring keeps two towns warm, a striking example of how directly Iceland lives off its geothermal heat.
The Experience
You walk a boardwalk beside a long, steaming bank where boiling water pours and bubbles from the rock, the algae painting the surroundings red and green. The volume is the spectacle: water surges out faster than anywhere else in Europe, and the heat and steam are intense. A geothermal greenhouse and a small spa nearby use the same water.
Why It Matters
Deildartunguhver shows the practical heart of Iceland's geothermal story, a single spring powerful enough to heat two towns kilometres away. It is the clearest illustration that the country's geothermal abundance is not just scenery but the basis of everyday life.
Deildartunguhver shows the practical heart of Iceland's geothermal story, a single spring powerful enough to heat two towns kilometres away.
Why Visit
Stop for Europe's most powerful hot spring, a dramatic, steaming bank of boiling water, and the remarkable story of the pipelines that heat two towns from here.
✦ Insider Tips
- 1
Stay on the boardwalk; the water is near boiling and the ground unstable.
- 2
Look for the red and green algae that the hot water stains across the rocks.
- 3
Note the pipeline story; this spring heats Borgarnes and Akranes far away.
- 4
It is an easy stop on the way around west Iceland toward Snaefellsnes.
