RedactedNarrative: Operator 1 was operating vessel 1 while traveling on plane headed downstream. Operator 2 was operating vessel 2 at idle speed heading upstream. Both vessel 1 and 2 were traveling at night when both operator 1 and 2 failed to see each other or take any evasive action. Causing vessel 1's bow to collide with the starboard bow of vessel 2. The main cause of this accident was the impairment of operator 1 due to alcohol. Operator 2 was had consumed alcohol as well that may have contributed to the slow reaction to vessel 1. Passenger 3 who was on board vessel 1 sustained minor injury from the impact with vessel 1. Passenger 4, 7 and 8 who were onboard vessel 2 sustained serious injuries from the impact with vessel 1 with all remaining onboard. Passenger 4 later succumbed to their injuries sustained in the boating accident. Both vessel 1 and 2 were a total loss from the impact.