RedactedNarrative: Boat #1 cruising north in Murphy Bay at approximately 10 MPH was overtake by Boat #2, which was towing a tube, striking Boat #1 in the port side rear quarter.  Boat #2 raked the entire port side of Boat #1 before coming to a stop. 
  Boat #2 while pulling two individuals in a tub overtook Boat #1 which was on a northly course at approx. 10 MPH.  Boat #2's operator stated that she was looking in the rear-view mirror at the tube, that the mirror was blocking her view and that she was not made aware of the impending collision until passengers' warnings. Additional contributing factors could have been the angle of the boat and the size of the mirror.
  Boat #2 struck Boat #1 in the stern quarter port side and continued along the entire port hull side cracking and splitting planks until it veered away.