Vessel 1, with two persons on board, stopped in a no-wake area to jump in and take a swim, allowing Vessel 1 to drift while doing so.  The Occupant jumped in first, and as he was resuracing, the Operator jumped directly on top of the Occupant, causing the Operator to strike her chin on the back of the Occupant's head.  As a result of the collision, the Operator was knocked unconscious and lacerated her chin; the Occupant sustained a laceration to the back of his head.  Both parties were taken to the hospital where they were treated and released for their injuries.
Cadiz                         