RedactedNarrative: UNIT 1 WAS ATTEMPTING A SLOW TURN AROUND A BEND IN FIVE FATHOM CREEK.  THE OPERATOR OF UNIT 1 LOST CONTROL AND THE VESSEL RAN AGROUND IN THE MARSH.  BOTH PASSENGERS RECEIVED BACK INJURIES AS A RESULT.  ONE PASSENGER WAS TAKEN BY AMBULANCE AND ONE PASSENGER WAS TAKEN BY HELO.