I had a Marine Science Teacher in High School (Who, by the way, was 38 Special's VERY original Bass Player....When they were a garage band and before albums) ANYWAY....He told us stories of Caves being BEAUTIFUL here in Florida but he also told stories of how you could baaaaarely touch some silt and then POOF!!! You cannot see a thing. I was amazed to learn then just how far some of the Caves can be.