World’s largest (by volume) lava tube cave. 1,585 meters long cave, with a volume of 148 000 m³. Contains ice formations, evidence of habitation, possibly from the Viking Age.

Location, GPS coordinates:	64.7504 N 20.8016 W
Categories:	Caves, Settlements, Geographical extremes
Values:	Geology, Visual
Rating:
Where is located?	Europe, Iceland, Vesturland, Borgarfjörður, Hvítársíða, some 2 km southeast of Fljótstunga farm
Length:	1,585 m
Volume:	148 000 m³

Víðgelmir on the map