Arnarker is a 515 m (1,693 ft) long cave in the Leitarhraun lava field, north of the old road leading from Þrengsli towards Selvogur.
Explore this area while on a self drive tour in Iceland.
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Although its original name is Arnarker (Eagle's Basin), the cave is almost always locally referred to as "Kerid". It takes about an hour to drive from Reykjavik to Arnarker and a marked path leads to it from a sign by the road.
Arnarker is spacious, wide and high, although the cave’s northern section is severely damaged; its ceiling collapsed a few thousand years ago and deposits cover the floor, except for the first 100 metres, which are perpetually covered by a thick sheet of ice. In late winter, enormous icicles form inside the cave, some becoming well over 3 m (10 ft) long.
