Rotomairewhenua or Blue Lake is located in the Southern Alps of New Zealand, 3900 feet above the sea level. Its waters are considered the clearest in the world. However, only a few people can enter the lake, since it is protected by the local law to preserve its clearness.
The landscapes around are incredibly beautiful, so the sight attracts tourists.
They can walk by or stand on the shore, but they are strictly forbidden to swim or get into the water.
Well, we doubt many people would do it! The temperature of Blue Lake is unwelcoming: 41 to 46 °F.
However, there are people that had to dive into it! These are scientists.
They conducted some researches.
They also determined the record-breaking visibility of Blue Lake’s water ranging from 230 to 260 ft compared to the 260 ft of distilled water!
Rotomairewhenua is sacred for local Māori people. The waters were used in their rituals. Its indigenous name means “the lake of peaceful lands.”
