Hverarönd

Hverarönd is a “high-temperature area” in northeast Iceland near Mývatn.

Besides bubbling mud pots, as you can see in the photos below, there are so-called solfataras. Volcanic gases, mainly hydrogen sulfide and carbon dioxide, escape to the surface there.

At 100°-250°C the gases are pretty hot, smell like rotten eggs and, as you can see in the video, make quite a lot of steam. :)