Minesing Wetlands is the largest intact wetland in southern Ontario.

It provides habitat for a large variety of flora and fauna, many of which are rare, sensitive and/or near the limits of their geographical range. Over 206 species of birds inhabit the wetlands, including 114 known breeders and Ontario's fifth largest Great Blue Heronry.

The unique hydrology provides for an interconnected network of wetlands, fens and marshes. This 6,000 hectare site comprises land holdings of the Nottawasaga Valley Conservation Authority, the Government of Ontario, County of Simcoe and numerous private landowners.