The jellyfish here have lost their ability to sting, allowing swimmers, snorkelers and divers to experience them up close.
In its current form the lake about 12,0000 years old.
The millions of golden jellyfish in the pond have evolved to have (almost) no sting, and migrate horizontally in a golden circus.
The millions of golden jellyfish in the pond have evolved to have (almost) no sting, and migrate horizontally in a golden circus.
https://en.wikipedia.org/wiki/Jellyfish_Lake
More: http://www.fishnfins.com/v2/en/dive-sites/jellyfish-lake.html
Image ‘Snorkeling With Jellyfish‘ courtesy tata_aka_T