If you are a professional diver you should visit Cenote Angelita, Mexico.
There's some kind of cave. When you go deeper than 30 meters the water is fresh, deeper than 60 - it's salty.
And then you see a river underneath, with trees and leaves.
But of course, it's not a real river.
It's just a layer of hydrogen sulphide.
But it looks amazing.
[via: http://acidcow.com]
[via: http://www.tecdive.ru/]
*One of those would love to dive surreal places for me!*
