Some people put on below the falls because it can be tricky to run and eazy to get hurt. There is a very clear launch piont in the center of the falls. However what you don't see is the water pushes hard away from the launch pad and toward the left. This is where you don't want to be. There is sort of a V notch/crack in the lip of the drop that wants to flip you then spit you over the lip of the falls. The landing is not very deep.