Hamilton.

Hamilton sits at the head of Lake Ontario where the Niagara Escarpment — locally "the Mountain" — bisects the city into a lower harbour-side downtown and an upper plateau. The Hamilton Conservation Authority catalogues roughly 100 waterfalls within municipal boundaries and manages 15 conservation areas that sit at the escarpment edge: Spencer Gorge (Tew's Falls at 41 metres, Webster's Falls, the Dundas Peak overlook), the 1,200-hectare Dundas Valley with 40 km of trails along the Main Loop and the Hamilton-to-Brantford Rail Trail, plus Devil's Punchbowl, Felker's Falls, Tiffany Falls, and Eramosa Karst on the Stoney Creek and Ancaster sides.

The Bruce Trail's Iroquoia section threads the escarpment through all of it on its 122.5 km run from Grimsby to Kelso. At the head of the harbour, the Royal Botanical Gardens protects Cootes Paradise — a 320-hectare river-mouth marsh that is one of the largest on the Canadian Great Lakes — and operates 27 km of nature trails plus five cultivated garden areas across Hamilton, Burlington, and Dundas.

The whole network sits within the treaty lands and territory of the Mississaugas of the Credit First Nation, an hour's drive from downtown Toronto.