What is the highest-flow hot spring in Europe?
Deildartunguhver is a hot spring in Reykholtsdalur, Iceland. It is characterized by a very high flow rate for hot spring (180 litres/second) and water emerges at 97 °C. It is the highest-flow hot spring in Europe.
Some of the water is used for heating, being piped 34 kilometers to Borgarnes and 64 kilometers to Akranes.
Its rising steam pillars can be spotted miles away but once you are close you are greeted with the most amazing bubbling hot pool. There is a fence around the hot spring, to make sure visitors don’t get too close to the power source.
A fern called Struthiopteris fallax, grows in Deildartunguhver. This fern is the only endemic fern in Iceland, and it does not grow anywhere else in the world.