RedactedNarrative: While three out of five of V1's occupants were in the water at Coffin's Patch, V1 began to take on water. The vessel was secured to a mooring ball at the time of the vessel sinking. V1 partially sunk.
  At approximately 1330 hours, Officer and I arrived at USCG Station Marathon where we met with the five subjects. OP1 identified himself as the renter and operator of the vessel. OP1 advised he picked the vessel up at the rental location. OCCUPANT 1 advised they departed about 0930 hours for a snorkeling/ diving trip at Coffins Patch. He further advised they secured the vessel at one of the mooring balls there. He and OCCUPANT 2 remained in the vessel. OCCUPANT 1 stated he was sitting in the stern when he noticed water sloshing about and the portside of the vessel sinking. He advised he tried to start the motors, but they wouldn’t turn over. He then turned on the bilge pumps. OCCUPANT 2 also advised water came in on left side of boat and that they used the bilge pumps. OP1 confirmed both the port and starboard side bilge pumps were working and the engines were off. According to OP1’s dive watch, he was in the water for about 55 minutes. They estimated the waves were about 1-2’ at 2 seconds and the winds were about 13 knots. Two divers were diving while OCCUPANT 3 was hanging onto the ladder of the boat when she noticed the entire back area filling with water. A good sam vessel assisted prior to USCG’s arrival. I obtained Sworn Written Statements from all of the subjects. USCG provided scene photographs and the registration certificate for the vessel.
  