RedactedNarrative: UNIT 1 WAS TRAVELING UPSTREAM ON RANTOWLES CREEK.  AS UNIT 1 WAS MAKING A RIGHT HAND TURN THE VESSEL STARTED TO SLIDE INSTEAD OF TURN.  THE VESSEL SLID INTO THE CREEK BANK AND BOTH OCCUPANTS WERE THROWN OUT OF THE BOAT.  THE OPERATOR WAS NOT WEARING THE SAFETY LANYARD AND THE VESSEL COLLIDED WITH A SEAWALL AND DOCK.  THE OPERATOR WAS ABLE TO SWIM OVER TO THE BOAT AND TURN OFF THE ENGINE.