RedactedNarrative: Vessel 1 was returning to it's marina from the mooring field at Willard Beach in South Portland.  
   Vessel Operator was the sole occupant in the vessel and he was heading north across Portland Harbor towards Portland and went on the wrong side of Diamond Island Ledge light signal and grounded his boat.   
  Operator of vessel 1 stated this was his "first solo night on my own" and "didn't have Radar".   
   The vessel was not moveable, the operator of vessel 1 had a tender on the back of his boat and after a few hours, took that back to shore later in the early morning.
  Vessel 1 did sink on the ledge, and drained at low water. 
  Sea Tow removed the boat at the next high tide and hauled the boat out.