RedactedNarrative: OPERATOR MADE TURN TO PROCEED IN OPPOSITE DIRECTION FROM ORIGINAL DIRECTION.  VESSEL STRUCK WAKE AT APPROXIMATELY 30MPH EJECTING OPERATOR FROM DRIVERS SEAT TO FLOORBOARD.  OPERATOR STATED VESSEL WAS HEADING TO ROCK FORMATION, MADE A SHARP LEFT TURN AND THROTTLE STUCK IN FORWARD POSITION.  VESSEL became GROUNDED CAUSING INJURY.