RedactedNarrative: V1 maneuvered vessel into Epping Forest Marina to pickup friend/Occupant at the Dock.  After wind caught bow of V1 the vessel stern collided with fixed underwater object. V1 took on water and partially submerged at dock. 
  
   Subject hailed V1 (American Dream) on VHF radio to ask the length of the boat.  He advised the owner/operator of V1  that there was a submerged piling marked by a red buoy and gave specific directions to get to the dock.  Subject said the captain was trying to get parallel to the mariners deck. During the process the captain of the boat left the helm two times.  
  
  
  The boat drifted away from the dock as the wind caught the bow of V1. The vessel drifted away from the dock and the captain asked (and was given permission) to back into the dock.   He secured a fender to the stern and picked up Occupant.  Subject gave specific directions to the captain on how to safely navigate and exit the marina.  The captain left the helm of V1 as the wind caught the boat as it got closer to the sunken pilings. 
  
   Subject said he heard a loud noise and asked the captain if he was taking on water. At that time the captain was not aware that the boat was taking on water.  Subject heard the captain hail United States Coast Guard that V1 was taking on water.  Jacksonville Sheriffs office as well as fire and rescue assisted to get occupants off the vessel. Tow Boat US did an evaluation and found they could not lift V1. There is a 100 ton crane scheduled to remove V1.
  