Nope. Lurchers and greyhounds are notoriously bad swimmers, due to their low body fat I believe.
Ted (big lurcher) once decided to lean down to get a drink from the canal, and promptly fell in. He disappeared from view, I assume touched bottom, and came out vertically, like a polaris missile and landed on the towpath.
He can swim, but it's all application, and no talent.
Not looking before he leaps, and finding the beach drops quite steeply.
Glarkcoughsplutter
Bloody water in me lugholes.