RedactedNarrative: Unit 1 traveling north on the ICW and Unit 2 was traveling south.  Unit 2 made an abrupt left turn in the direct path of Unit 1.  Unit 1 then strikes Unit 2 on the starboard side.  Unit 1 then took on water and sank.  Operator of Unit 1 ended up in the water and secured his dog on his shoulders.  No injures.