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Image for: Diving into Colorful Underwater Worlds


Rotomairewhenua (Blue Lake), high up in New Zealand’s Southern Alps, is sacred to the Māori. The lake has the clearest freshwater ever reported.
Rotomairewhenua (Blue Lake), high up in New Zealand’s Southern Alps, is sacred to the Māori. The lake has the clearest freshwater ever reported.

© Michel Roggo / roggo.ch

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