We had a great adventure this afternoon. We went to a cave that had crystal clear water in it.  It was the first cool water we have felt since we got here.  It was heaven!  We followed a narrow corridor into another chamber where the water was about 15' deep.  I have never seen such clear water.  It was so clear that it was hard to tell where the surface was when we first got in.  It was a nice way to cool off after a hot day.