UNIT 1 WAS TRAVELING NEAR CROW CREEK LANDING WHEN THE OPERATOR FELT THE TUBE JERK BEHIND THE BOAT. OPERATOR STATES HE LOOKED BACK TO SEE THE THREE SUBJECTS WHO WERE RIDING THE TUBE HAD BEEN THROWN OFF. VICTIM WAS BLEEDING FROM LACERATION ON FACE, BELIEVED TO HAVE BEEN CAUSED BY ACCIDENTAL KICK FROM ANOTHER PASSENGER ON TUBE. SUBJECTS MET EMERGENCY RESPONDErS