RedactedNarrative: On 09/13/2013, V1 was moored in Slip E30 of the South Park Marina on the Duwamish River located in King county WA.  At about 10:50 p.m., witnesses noticed fire on the vessel coming from the cabin to bow area.  Witnesses immediately called 911.  One witness used a garden hose in attempts to keep other vessels and the fuel tanks from igniting until fire personnel was on scene to start suppression.  When fire personnel arrived the vessel was fully engulfed to the gunwales.  A foam retardant was used to extinguish the fire.
   
  V2 was moored in Slip E and had heat blister damage to its fiberglass cabin and hull on the port side.  V3 was moored in Slip D and had heat blister damage to its painted wood port side.  The dock had charring damage to a piling and a melted overhead dock light.
   
  According to King County Fire Investigator, Gerry Kenny, the cause of the fire is unknown at this time.  Indications are the fire started in the lower center of the cabin area of V1.  The owner stated that he left the boat secure at about 7:00 p.m., and all electrical was off except for the maintenance located at the aft of the vessel.  
   
  The vessel was removed from the water.
   
  No injuries / fatalities.
  No apparent alcohol involvement.
  Damage estimates - V1, $20,000 - V2, $1,000 - V2, $2,000.
  All vessels were unoccupied - PFD wear N/A.
  All vessel were tied/moored to the dock - mandatory Boater Education Card possession N/A.
  There were no Rules of the Road Violations.
NameOfBodyOfWater: Duwamish River
NearestCityTown: Seattle