Kazumura Cave

The ʻAilāʻau lava flow that contains Kazumura Cave originated from the Kīlauea Iki Crater about 500 years ago.

[3] Later in 1981, a British expedition ended up surveying 7.27 miles (11.7 km) of the cave and it was then recognized as one of the world's longest lava tubes.

After some digging in black lava rock, Kevin and Mike Shambaugh got close to connecting these two caves.

Kevin and Carlene Allred then surveyed the combined caves to a total of 29.32 miles (47.19 km), which made it the longest lava tube in the world.

[6] These arthropods likely use a network of interconnected cooling cracks in the surrounding pahoehoe lava as their primary habitat and sometimes disperse into the cave.

Arched passages in the main tube show the classic lava tube shape. The floor was the crust on a former lava lake that fell inward as it drained from beneath.
Collapse into a round lava lake after it drained. The source of the lava is the lavafall in the background.
A forest of sensitive tree roots in the main corridor of Kazumura.