I have dove lake whitney many times, I learned to dive there. We have been in the caverns/caves there. A few people have gotten into serious trouble here, it is easy to swim into them without knowing it in limited vis. This generally happens on the return from a deep dive, and you are already low on gas. Suddenly you find yourself in an overhead envoirment, low on gas, and no idea which way is out. If you decide to do this,please be sure you have the proper training/experience, and equipment. Be prepared for low vis, low/no light, silt. That being said, they are not dificult to find, anyone with local knowledge could probably show you.