Wow, what an awesome trip.  What an awesome couple of trips, since we've been twice so far.  Why more than one visit?  It's that big.  We spent 4 hours in it the first time and didn't even find one of the lakes.  As you can tell by some of the pictures, we were more successful the second time in finding one of the crystal clear pools.  A plan to go back is already in the works.

This cave was more of a trip to the center of the Earth than a regular straight-back cave.  In fact some of the routes go almost straight down several hundred feet and climbing skills become your new best friend.  There were a lot of room type areas to be found also, but many of the connecting paths were very tight squeezes.  By the time we called it a day, we were all pretty much wiped.

Cave of the Bells is considered a living cave because it is still forming, which in other words means you will come out covered in mud.  It also means that it's quite humid in there too.  The lake at the bottom is supposedly warmer than the air because it is heated from below, but it felt great to us.  I read one article on it that said that the water was so clear that you couldn't tell where the air stopped and it started, and we found that couldn't be more true.  It took a few seconds of looking straight at it to tell that it actually was water and not just another deeper spot of the cave (see both bottom left pics).

You actually have to get a key to enter this cave because it is gated and locked.  You may not understand why, until you've been in one before and seen the broken formations some prick has desecrated for no reason.