3 ms·
> The longest of those in Auckland run up to 290m (957ft); in the US, that figure is closer to 4km (2.5 miles), with Ape Cave at the Gifford National Park in Wa
by skissane 3y ago
> The longest of those in Auckland run up to 290m (957ft); in the US, that figure is closer to 4km (2.5 miles), with Ape Cave at the Gifford National Park in Washington the longest continuous tube in North America.
If we are comparing lava tubes, the longest in Australia is the Bayliss Cave at Undara, Queensland, at 1300 metres long. Kazumura Cave in Hawaii is a lava tube over 65 km long, but that is including human-dug tunnels through collapsed sections. Working out what is the longest lava tube in the world not counting collapses is a bit trucky; Kazumura is near the top of the list (at around 11 km for longest uncollapsed section) but Bilemot Gul on South Korea’s Jeju island apparently beats it. [0]
[0] Per http://www.vulcanospeleology.org/sym03/ISV3x15.pdf http://www.vulcanospeleology.org/sym03/ISV3x15.pdf but that’s a 1980s source so may be outdated