RedactedNarrative: Vessel #1 left the area of the Mart Dock on Muskegon Lake going west bound. Operator #1 was operating a tiller motor, seated at the stern of the boat.  The victim was in the idle seat in front of the operator. There was a passenger seated near the bow on the deck.  #1 said that he was unable to see the navigation aid and struck it with the starboard bow, inland of the navigation aid.  Victim hit deck.  No other injuries were reported.