The water walking balls are a great time for all ages. The participants are actually walking on water without getting wet. Comes with 2-3 attendants to assure a smooth and safe operation of this game. 1 electrical outlet is required and requires a close water source. Average time to fill up pool by standard water hose is 2-3 hours. Participants must be physically fit to participate in this High thrill ride! This rate is good for up to 4 hours. Additional time can be added on for $100 per hour.