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Toronto is a flat city. That is, unless you discover its secret. Running through the downtown and suburban megacity is a hidden world of ravines. In these 34 walks, urban readers will discover the wilds within their midst -- cliffs and overgrown fields, red fox and red-tailed hawk, whitewater and white pine. All walks are accessible by public transport, and each is presented with abundant information for seasoned hikers, weekend walkers, explorers, birders, amateur naturalists, families, and, in a few cases, young lovers. Author's note: The person who finishes any one of these walks in the shortest amount of time has missed the whole point, and a lot of other good stuff!