Askja Caldera is located in the center of the Icelandic Outback. Lake in the Caldera It is the deepest lake in Iceland, around 220 m deep. Next to the Lake is Víti, a geothermal lake with water temperature around 25°C.
In the Dyngjufjöll mountains which surround the Askja caldera can be found the impressive Drekagil, the canyon of dragons. Not far from Askja, there are two other interesting volcanic systems: Herðubreið and Kverkfjöll.
Askja is a popular tourist destination. There are two mountain huts and a campsite at Dreki, by Drekagil, which is about 100 km by a 4×4 F-road, from the Icelandic ring-road. The road continues 8 km up from Dreki into the Askja caldera. It is a walk of about 2.5 km from the car park to Öskjuvatn and Víti. The roads are usually only open for about three to four months, from late June until early October.