all of my dogs love to swim...Kacie the coatie is the water dog though. She will lay in a mudpuddle any chance she gets.
Sadly we don't have access to ponds, lakes or pools that often. Most of the public accesses don't allow dogs during the summer. Lake Michigan has a few dog beaches, but they keep getting more and more rare.
We use to live on a lake and my dogs have always been into fishing/swimming and boating. It is really weird now, that I have no place to take them(other than my trainers pond) to cool off. I am leary of ponds because of the lepto or other bacteria that the dogs may ingest. I didn't like the treated ponds either...but they are safer.