nonspecific and I went out to Blue Hole a weekend or two ago to do some photography and to let her try out a couple of lenses I'm selling. The water was lower than I had ever seen it, and a small cave was accessible off to the right of the middle falls. I had my river sandals on so I made my way past the fall and into the cave. I spent maybe 15 minutes under there, doing shots with and without flash. I literally couldn't feel my feet when I came out, the water was like ice. :)