The City of Fort Collins has an annual Pooch Plunge at the end of every pool season. For two evenings, after the pool is closed to human swimmers, they open the pool to dogs and their owners. This was our second PP, and I think Sally really enjoyed herself. There were some reluctant pooches, but no one had to tell Sally twice that the water was there for her enjoyment.
She didn't want to get out to the deeper water and swim with the Labs, but was happy to play fetch with a tennis ball in the shallower water. So much so that when the ball developed holes and sank when I threw it, she put her whole head under water and find the ball.
At $8 a pooch, the City made some money on the event and it's a great PR gesture for them as well. Colorado in general is very dog-friendly (and bike friendly too), but I think that this is an especially cool event.
And, she was very clean, if not a little chlorine-smelling.