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Story: National parks

Entrance to Bulmer Cavern

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Entrance to Bulmer Cavern

A caver stands at the entrance to Bulmer Cavern on Mt Owen. It is New Zealand’s longest cave, stretching more than 50 kilometres. Geologically complex, Kahurangi National Park has some of the deepest caves in the world.

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by Mike Wood

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How to cite this page

Nancy Swarbrick, National parks – Upper South Island parks, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/14445/entrance-to-bulmer-cavern (accessed 4 June 2026).

Story by Nancy Swarbrick, published 2 March 2009, updated 1 August 2015.