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JiLuDB /

Region with the Most Active Geysers

#00411 / Nature

Longest Lava Tube Cave

Verified

about65.5km

Kazumura Cave

East flank of Kilauea Volcano, Island of Hawaii, Hawaii, USA · Kazumura Cave

Kazumura Cave on the flank of Kīlauea in Hawaiʻi is the longest known lava-tube cave, with approximately 65.5 kilometres of mapped passages.

JiLuDB /

Largest Submarine Canyon by Excavated Volume

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