This type of sports you want up on the cliffs and below must be sufficiently deep water. There is no barrier safety device and then insert the drop down from the cliff, before water storage must be done hand "will not affect the water pressure until the danger.
This sport needs to go up on a steep cliff. And below water is deep enough. No barrier Then add safety equipment And threw himself off a cliff. Before they reach the ground water to keep the hands will not bend until the force of the water hazard.
This kind of sport has been on a steep cliff? And down to the water deep enough, unobstructed, then put the safety equipment and abandoned the down from the cliff, just before the need to do to keep hands. Curls.