RedactedNarrative: V1, a personal watercraft, operated by OP1 was cruising southeast out of the Lanark Boat Club and collided with a submerged rock. There were no injuries reported.
  
  OP1 advised he launched his PWC at the Lanark Boat Club and exited the channel leading out of the boat club. After he left the channel heading southeast he struck a submerged rock, at approximately 0945 AM. OP1 advised the PWC motor shutdown about 30 seconds after collision. He radioed on his VHF for help and a good Samaritan assisted him back into the boat ramp. 
  
  OP1 placed the PWC on the trailer and while inspecting the vessel for damages I observed a large hole in the center part of the keel, (see attached photos). I did not observe any other visible damages to the vessel.