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Sea cave

Rikoriko Cave

Poor Knights Islands, New Zealand

No public photo available

One of the largest sea caves in the world by volume, inside a marine reserve that Cousteau ranked among the best dive sites on Earth.

40 m
26 mRecreational limit

Bathymetry and profile

A huge chamber 130 m long and 35 m high, with water up to 26 m deep. It is big enough for boats to enter.

Dashed line: 40 m recreational diving limit

Features

  • Natural acoustics used for concerts
  • Glowing plankton
  • Sponges and fan corals

Specific fauna

  • Short-tailed stingrays
  • Blue maomao
  • Nudibranchs
  • Moray eels
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