RedactedNarrative: Vessel 1 was moving counterclockwise on the lake.  Vessel 2 was in tow and had a skier fall into the water.  
  
  Vessel 2 raised their red flag to show that a skier was down and Vessel 2 turned right to loop around to retrieve the skier, but Vessel 1 collided with vessel 2 on its bow port side, as Operator 1 did not see Vessel 2.  
  
  All parties/operators were wearing PFDs.  Safety checks were conducted on both vessels.