RedactedNarrative: Unit 1 was traveling south on horseshoe creek.  Unit 2 and unit 3 were traveling north on horseshoe creek.  Unit 1 saw unit 3 as they approached the curve of the river but did not see unit 2.  When unit 2 saw unit 1 he turned left and unit 1 turned right.  Unit 1 realized unit 2 turned left so unit 1 tried to correct and struck unit 2 in the engine.  Unit 3 lost power due to throttling down quickly as he was going to neutral.  Unit 1 and unit 2 also lost power after the collision.  Unit 1's bow hit unit 3 in port aft.  Several people suffered minor injuries from impacting their vessel.