On the western outskirts of Toronto is the Centennial Park, a nice area to walk around. What I liked was the greenhouse, because there was free admission and extended hours, home areas that were filled with cactus, tropical plants and flowers of vivid colors and smells. Outside the greenhouse one can find small ponds, golf, and Ebicoke multisport center where you can go swimming, play tennis or other activities (information office is in the first room of the building). For anyone staying in these areas it can be an alternative to the busy and active Toronto.
Toronto Music Garden is a park entirely devoted to Suite of Bach No. 1 in G Major, and a very famous touristic point worth going to. It has free entry right on the Harborfront lakeside and was designed by internationally renowned cellist Yo Yo Ma, and the landscape by designer Julie Moir Messervy. The maze design makes you feel like you are walking through the song's sheet music, as in each garden there is a plate with the score, stating which part of the song you are in. Over summer, you can enjoy free presentations of Summer Music in the Garden.