All tours depart from the Cave´s service house GPS: 64°45'19.7N 20°48'100W / 2WD accessable.
Víðgelmir is a lava tube situated in the Hallmundarhraun lava field. The lava field was formed during an eruption in the 10th century, originated undir the Langjökull glacier in West Iceland. Víðgelmir is 1585m long and the largest part of the cave passage is 15,8m high and 16,5m wide, making the cave by far the largest of its kind in Iceland.
The tour is a light stroll into the cave which has new access walkway and lights.