Underwater Astrolabe Reef

Image 3 of 27
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Underwater Astrolabe Reef 3
The Keyhole Cavern through Astrolabe Reef wall. A diver swims through the keyhole leading to the open reef. This image was taken prior to the MV Rena wrecking on Astrolabe Reef in 2011. It is understood that the weight of the Rena has damaged this geological feature and popular dive site.