RedactedNarrative: Rock jetty extending out from shore line approx. 60 years with a danger buoy at the end of it.  Boat coming into the bay at sunset struck the submerged rock jetty between shoreline and the buoy.  Boat was traveling at approx. 5 MPH at time of impact.  Subject was in front on lookout and saw what she thought was rocks underwater and informed the operator but they were not able to stop in time.  Upon impact she was thrown over the front rail into the water.  She struck her right thigh on the rail as she was thrown overboard.