Askja caldera lake, Iceland

Location: Dungjufjoll mountains, North of Vatnajokull glacier. The road to Askja goes from road 1 to road 901 and onto mountain road F905. Onward to F910 to Drekagil. On this route there are two fords to cross, usually small. From Drekagil goes mountain road F894 (8 km) to the car park at Vikraborgir.
Another option is to go from road 1 to mountain road F88 via Herðubreiðarlindir to Drekagil. On this road ther are fords on the rivers Grafarlandsá and Lindá that need to be crossed. The fords can be difficult or even impassable for small jeeps.
Facilities: Natural crater with geothermal water. Two mountain huts in vicinity.
Description: Askja is a 50 km2 caldera in the Dungjufjoll mountains. In an eruption in 1875, an area of 11 km2 on the south-eastern side of Askja caved in to form a Lake Oskjuvatn, the deepest lake in Iceland, 217 m and a tephra crater known as Viti (Hell) north of it. Water has accumulated in the crater, its temperature is variable — it is around 30°C on average. Víti is a popular bathing site, but if you intend taking a dip, please be aware that the sloping path is very slippery in wet weather.
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