Nothing beats swimming in a lake, and that is why I am starting this post with a short of beaches I recommend.
#1. Keewatin Beach, North of Goderich.
#2. Goderich Beach
#3. Beaches, Toronto
But if beaches aren't your thing there's also swimming pools, such as those run by the YMCA. And if you really have your heart set on owning your own pool then you can visit progreenlandscaping.ca which does landscaping, pools and renovations in the Toronto region.
Of course once you have the pool most people also rush out and start buying patio furniture, most likely from Canadian Tire or some other low budget source.
HOWEVER before you do I want to point out that many of the products sold in Canadian Tire are not actually made in Canada. And worse, the quality is so low that in 3-5 years you will have to replace everything.
This is why I am recommending
Velago Patio Furniture. Made in Canada, high quality, and it won't cost you an arm and a leg.
Lastly I want to talk about dance classes. I recommend the following places to learn dance.
#1. York University Dance, Toronto.
#2. The National Ballet School of Canada, Toronto.
#3. Danceology, Toronto.
#4. Ballet Creole, Toronto.