• Descent 305 - Pre-order is open!!

    Our August/September issue has a publication date of 2 August, and it is a special summer bumper issue full of stories of exploration and wonder from the underground world.

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Mexico Cave of Crystal

The Old Ruminator

Well-known member
Saw most of the two hour documentary on National Geographic channel last night. Nearly 50 degrees in there and those giant gypsum crystals . The descent of the bored mine shaft was great too. Another hot chamber 150m down. Worth a catch up.
 
I met somebody who got to visit it a few years back. It destroys cameras but probably not the OR's ;D
 
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