[Faline]

The Orda Cave Awareness Project is dedicated to the biggest underwater gypsum (a very soft mineral composed of calcium sulfate dihydrate) cave in the world. It is located near Orda village (Perm region of Russia), and contains: articles by geologists, stories about animal life, interviews with pioneers and reviews by leading experts in cave diving.
The book is illustrated with more than 100 unique underwater photos along with the first published map of the Orda cave. The book is the result of more than 150 dives, with all 5 kilometers of of the underwater cave photographed.

For more awesome images and info:
http://ordacave.ru/en/gallery/

[kellyhound]

beautiful underwater world

[Sharon]

Looks like screenshots from a human version of Ecco the Dolphin. Awesome place

[Kadavar]

That is amazing!! So clean (i assume) and so clear. Great post!