Kazumura Cave
CountryUSA
RegionHawaii
Discovered1973
Size/Depth66 km surveyed
About Kazumura Cave
The longest and deepest lava tube in the world at 66 km long and 1,102 m deep. Located on Kilauea volcano. Formed about 500 years ago. Contains lava falls, ledges, and unusual formations. Most of the cave remains unexplored.
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