RedactedNarrative: Unit 1 was traveling southward from Blarney Island when it collided with the center of starboard side of unit 2.  Unit 2 was traveling northwesterly and entering the river channel south of Blarney Island.  Unit 2 observed Unit 1 heading in their direction and decreased his speed to approximately 5mph to allow unit one to pass in front of their bow.  Unit 1 then turned to their port and struck Unit 2.  Unit 1 then came to rest on top of Unit 2, which caused the gunwale of unit 2 to go under the surface of the water and flood.  Operator1 had a .19 BAC.  Unit 1 - reckless operation along with alcohol were factors in the accident.