Brought 17 people to tube on the zero gravity hill. HAd a great time, however the mountain was extremely fast and it was very hard to stop. There needs to be a padded stopping area or something better than tubes tied to a rope. They did work on hills to try and slow them down some. Was lots of injuries. I felt that some of the staff should have been on the hill. At one point 4-5 people in front of patrol shack, two people doing loading and unloading and no one at top. Later guy at top was added. I would highly recommend going, but had some anxiety with the safety!! Staff is proud of their "Total Injury Waiver" and heard that by two different people and over their radios when one person was hurt a little.