nubbsgalore: blue lake in new zealand’s nelson lakes national park is the clearest fresh water body on the planet. with an underwater visibility of over 80 metres, it is as optically pure as distilled water, which is naturally blue in colour (due to

nubbsgalore: blue lake in new zealand’s nelson lakes national park is the clearest fresh water body on the planet. with an underwater visibility of over 80 metres, it is as optically pure as distilled water, which is naturally blue in colour (due to

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