Lost River Cave: This cave was really cool because you get to ride a boat into it. The river bubbles out of the ground and starts at the blue hole (the first picture), runs about 400', then disappears into the ground. So at the mouth of the cave you take a boat in, and have to duck down as low as you can because the boat itself (nothing more than a metal raft, no roof or anything) barely fits underneath the rock at the opening of the cave. It was pretty fun because hunched over as low as you could go the rock was still just barely above your head and the kids liked that they could put their hand up and rub the rock. Apparently back in the day there was a night club at the opening of the cave, which is what the metal awning you see in the picture is from. THey would have a band under that awning, and there was a bar and a dance floor and everything.