Cootes Paradise is a property with many boundaries, but is primarily a property of the Royal Botanical Gardens at the western end of Lake Ontario, but is also remnant of the larger 3700 acre Dundas Marsh Crown Game Preserve established by the province of Ontario in 1927., dominated by a 4.5 km long rivermouth wetland, representing the lake's western terminus. It is found on the west side of Hamilton Harbour and is located in the municipality of Hamilton, Ontario, Canada. Cootes Paradise Environmentally Sensitive Area is larger "core area" within the City of Hamilton's Natural Heritage System and has a very similar boundary to the original Dundas Crown Game Preserve.