I went down the one that is 30 meters straight down in Mountain Creek NJ. Down in a blink of an eye! Not scary at all, our whole group from 5 to 50 all went down with no problems. It is actually very safe due to the speed. No worries. Will do it again this summer. If you want me to rate it, cliff jumping is more scary. You have to overcome your own fear and step your feet out for that one. After you jump, gravity takes care of everything.