As of July 2011...
Alexandra Park pool water temp is COLD. I was told by a lifeguard that the pool is leaking, and to compensate they are pumping in fresh tap water 24/7. I repeat, the water is COLD. I'm a competitive swimmer and enjoy training in cooler water (70-72F) but this is kind of ridiculous. I would say it's not more than 63F-ish.
Alexandra Park pool is 50 yards long. Weird and a bit rare to see that in North America anymore.
All City of Toronto outdoor pools are all free for everyone to enjoy. The showers in the men's changerooms kind of suck, the shower heads should be replaced, they kind of spit out water everywhere else than on your body. Other than that, the changerooms are clean and spacious.
Not sure about the earlier poster's comments about people being young and beautiful. The patronage reflects the diversity of Toronto much like everywhere else in the city. I didn't notice any pervs or skeevs, just local residents enjoying a free city pool.
I'm a swimmer and come for adult lap swimming at night, and just might have been the grape smuggler to which she makes reference. It's much easier to swim 4000 yds in a speedo as opposed to board shorts.