The Fjallabak nature reserve is located in the highlands of Iceland, not far from the Hekla, Iceland’s most destructive volcano. The area is sculptured by volcanoes and geothermal activity and displays a number of unusual geological elements, like the multicolored rhyolite mountains and extensive lava fields. It is the largest rhyolite area in Iceland and the second largest geothermal area (after Grimsvotn in Vatnajokull). There are many manifestations of the geothermal activity in the area, including several hot pools and the wide variety of colors in the rocks. In this serie, I show the rich variety in colour and structures.