RedactedNarrative: On July 3, 2016 at approximately 1205 hours, V1 was traveling up river at approximately 30 to 35 miles per hour near the Arizona shoreline of Davis Camp South. V2 was traveling down river at approximately 5 to 10 miles per hour near the Arizona shoreline of Davis Camp South. V2 was heading in to their camp at Davis Camp South. Subject1 was operating V1 and realized V2 and V1 were on a collision path. Subject1 attempted to make a right hand evasive maneuver. Subject1 reported hitting a wave, which coupled with the speed and time at which the evasive maneuver was made, caused conditions which created the collision. Subject2, the passenger on V1, was ejected but uninjured. All 3 occupants of V2 were ejected. Subject2 assisted Subject3 to V1 and to shore. Subject4 and Subject5 were assisted by unknown persons to shore. Subject3 and Subject5 received contusion and abrasion injuries. Subject1 received a "jammed" hip injury. Subject1 was cited for operation at unsafe speed to avoid collision.