where are the clearest waters on earth
Blue Lake, New Zealand. A 2011 study by the Auckland-based National Institute of Water and Atmospheric Research found some of the clearest waters on record in the small Blue Lake, part of Nelson Lakes National Park in New Zealand’s Southern Alps, accessible from the village of Saint Arnaud.
Some of the beaches are strewn with pebbles, others with soft white sand, but they all have one thing in common: cool, turquoise waters so clear you'll never have to worry about smashing your toes against invisible rocks hidden beneath the surface.