there is a way to do it. If you sit by the exit and when someone is walking out you walk out right behind them, then walk back out and you will be walking on water. It takes practice to learn it, but many have mastered the technique.
Make a task to locate an item. Place that item in the waterpark pool away from an entrance into the pool. Go back to your kiosk, double click that task and you'll walk on the water.