Dec 2011 my family (6 people) went up the falls. From our viewing of the ads we thought the water level was only ankle to shin deep. We were highly surprised. Some in our group were not athletic at all and the climb was difficult and very dangerous at times. I did see a gentleman, not from our group, slip on a rock in about 3' of water. It seems he either broke a bone or seriously injured his knee. I do not know how it all turned out, our tour continued on. My wife was definitely not excited about this specific excursion. It will not be on any of our future excursions. I do not feel this particular event is the safest of activities.