World's Biggest Cave Chamber

[longknife]

And you need to swim to get to see it!


Read story @ How to Reach World s Biggest Cave Chamber Swim

 

[shart_attack]

I think that may be the same cave in which this 2011 James Cameron flick was filmed:

Sanctum film - Wikipedia the free encyclopedia

If you haven't seen it, you need to. It is AMAZING.