These aren't my Blazer. He's terrified of water. He hates so much as getting his feet damp. That's why he'll pee on the pavement rather than go in wet grass unless my dad yells at him.
Across other youtube clips, there's people saying corgis can't swim. "Look at their bodies! They aren't made for swimming!" Bull. They are like floating logs with little tiny flippers to steer the way. They can't swim fast but they float pretty well.
BONUS: Super Mario music.