RedactedNarrative: Vessel #1 was anchored from the stern near shore and the anchor was not properly set. Waves began to bring water into the vessel.  Operator of Vessel #1 started the engine and attempted to back away from shore.  
  
  Additional water came into the vessel and the engine died. Vessel #1 drifted onto shore.  All occupants had on PFD'S after vessel began to take on water and were able to safely exit the vessel.  Another vessel attempted to assist Owner/Operator of Vessel #1, and pull the unoccupied vessel off the shore.  Vessel was pulled from shore and partially sank.