For those scuba divers who wonder what it would be like to dive in a gypsum cave in over 100 feet of water at 5 degrees C, check out this post on Google+. The pictures are incredible. Of course, most of the divers that I know would not be crazy enough to try this. For the science geeks, remember that this is a gypsum cave–calcium sulfate! All of the walls and huge blocks of stone are calcium sulfate. I have seen a lot of limestone cave dive photos, but never photos like this.
https://plus.google.com/u/0/106176762220398854458/posts/hyfTQ7zc2Pi
You can also go directly to a website which has a lot of photos of the cave. http://www.environmentalgraffiti.com/news-orda-cave-longest-underwater-cave-russia?image=0
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Wow! Great photos. Thanks for sharing.