One of the amazing destinations in the Fjalllabak region is Rauðibotn crater: A red and green emerald surrounded by the volcanic deserts and wastelands between Torfajökull and Mýrdalsjökull glaciers. A hike to Rauðibotn is made all the more spectacular by the river Hólmsá and its waterfalls, which form a spectacular string of pearls.