Reykjadalur Valley Hike, Hveragerdi

Known as "Steam Valley," Reykjadalur Valley features a unique landscape of varying colors and terrains, complete with mystical steam seeping through the ground. Located just outside the town of Hveragerði (less than a 1-hour drive from Reykjavík), the valley is an important part of the Hengill Volcanic System.

Although the last eruption was over 2,000 years ago, the area is still very active with steaming mud pools, fumaroles (the openings in the Earth's crust that release steam), and a hot river flowing down from the mountainside. You can easily follow a well-marked trail that leads to the hot river. Here, if you wish, you can take a dip! The water's temperature varies, but it's usually warmer at the top and cools down as it flows. 

Check with local sources before venturing out, as the area is occasionally closed to protect its fragile vegetation (this happens more commonly in the winter months). It's best to stick to the paths, as the valley features exciting but dangerous boiling hot springs and geothermal activity. 

Discover more hiking opportunities in Iceland and other volcanic experiences in the country.