>>2437801I do it all the time since I have no car. Gradually you figure out which areas have clean washrooms, rest areas, and which areas are unsafe and when.
In Toronto you can follow the ravine across almost the entire GTA, the catch is that it can be unsafe down there because it's isolated and it's sunken in with loud roads on both sides, plus the ravines can be smelly, it's better in winter, or early spring when the woodland ground is covered with blue siberian squills.
I like 'urban hiking' through downtown Toronto and looking at the really old tree and really old buildings. Blocks away from Yonge and Bloor there is a suburban neighbourhood with old growth trees several stories tall that looking up you can't tell you are downtown, the air was so fresh.
I feel giant blocks of residential areas with no park or preserves are fine when they are houses with backyards and front yards, but with all these dense condos going up they have to set a new area for some fast growing tall trees that would bring a lot of oxygen in the area so we don't poison each other with carbon we breathe out.