Deep-water soloing
Deep-water soloing (DWS), also known as psicobloc (from "psycho-bouldering"), is a form of free solo climbing where a fall should result in the climber landing safely in deep water below the route. DWS is considered safer than normal free solo climbing but riskier than normal bouldering, because of several risks of its own, including trauma from uncontrolled high-speed water entry, injury from hitting hazards above and below the water while falling, and drowning in rough or tidal seas.