Dolphin dive

In non-competitive diving, a dolphin dive is a form of rapid entry used by lifeguards to quickly traverse stretches of shallow (waist – chest deep) water. To perform a dolphin dive: Dolphin dives are performed in rapid succession until the water is neck-deep, at which point the rescuer transitions into an appropriate swimming stroke, such as heads-up front crawl or breaststroke.
 * The rescuer runs to a point where the water is roughly-waist deep.
 * Before forward momentum can be slowed, the rescuer leaps forward in a dive position, arching his body to break the surface and reach down towards the ground.
 * The rescuer then tucks his feet underneath his chest to where his hands were, and begins the next dive.