Trivia: What is unique about New Zealand’s Blue Lake?
Largest lake in Oceania
Deepest lake in the world
Nearly pure water clarity
Half saltwater, half freshwater
The correct answer is Nearly pure water clarity
So why is this answer correct? : New Zealand is no stranger to stunning natural formations, and Blue Lake in Nelson Lakes National Park on the South Island is just one such example. In 2009, it officially became the clearest freshwater lake ever reported when a team of researchers from the National Institute of Water and the Atmosphere (NIWA) began running optical tests and found nearly pure clarity, which is extremely rare.