This spiral ramp was part of the development in 2004 of Ruakuri Cave, at Waitomo. The ramp leads down to the deepest parts of the cave system. Ruakuri was first opened to tourists in 1904, but had been closed to public access from 1986 to 2004.
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New Zealand Herald
Reference: 21 July 2005
Photograph by Amos Chapple
Permission of the New Zealand Herald must be obtained before any re-use of this image.