Safety rules: 3 years old and older. 1.07 m (42 in.) tall and over. Children less than 1.22 m (48 in.) tall will be admitted as long as they are wearing a personal flotation device and are accompanied by an adult. Maximum 400 lbs. (182 kg) per inner tube. Glasses with straps permitted. Not recommended for people with heart conditions, back or neck problems or people afraid of heights.