RedactedNarrative: Vessel 1 was operating upstream on the WI River on the 6:00 pm tour with 7 passengers.  Vessel 1 passed Vessel 2 and Vessel 3 as they were sitting around Coldwater Canyon near the narrows.  Vessel 1 continued operating upstream and was passed by Vessel 2 and Vessel 3 either while Vessel 1 was going around Steamboat Rock or doing a maneuver just north of Chula Vista.  Vessel 2 and Vessel 3 continued operating upstream after passing Vessel 1.  Vessel 1 continued operating upstream after passing Steamboat Rock and/or doing a maneuver.
  
  
  Vessel 2 was operating on the Juneau County side (left side) of the channel and the Vessel 3 was operating on the Adams County side (right side) of the channel.  Vessel 1 was operating in the middle of the channel going in between Vessel 2 and Vessel 3 just downstream of where the river opens to the bay. 
  
  Vessel 2 started to cross the river channel towards Adams County in Vessel 1's path.  Vessel 1's operator did not see Vessel 2 until Vessel 2 was less than 10 feet away from Vessel 1.  Vessel 1's operator and 2 passengers on Vessel 1 saw Vessel 2 operating at an angle towards the port bow of Vessel 1.  Vessel 1's operator did not see Vessel 2 until Vessel 2 was approximately less than 10 feet away from Vessel 1.  Vessel 1's operator did not have time to avoid the collision after seeing Vessel 2.  Vessel 2 collided with Vessel 1 on Vessel 1's port bow.  Vessel 2 collided with Vessel 1 on Vessel 2's starboard side mid-section.  Vessel 2 and the operator went under Vessel 1 and eventually surfaced in separate areas on the river.
  