Safety
Propeller safety
The set of practices that keep riders away from the spinning propeller, including using only inboard boats and shutting the engine off before anyone is near the stern.
Wakesurfing is only safe behind inboard direct-drive or V-drive boats, whose propellers sit tucked underneath the hull rather than at the very stern. Sterndrive and outboard boats place the prop right where a wakesurfer rides, making them unsafe for the sport. Even on safe boats, the engine must be shut off whenever a rider is in the water near the stern, and the boat must never be backed toward a person in the water.
Prop strikes are catastrophic, so prop safety, choosing the right boat and always killing the engine in the fall zone, is non-negotiable.