Cootes Paradise Marsh is the largest
wetland at the western end of
Lake Ontario, on the west side of
Hamilton Harbour. It is located in the city of
Hamilton, Canada. It is owned and managed by the
Royal Botanical Gardens (RBG), a private charitable status organization. The marsh is part of the Cootes Paradise Nature Reserve, with these lands representing 99% of the unaltered lands along the local Lake Ontario shoreline. The site is a National Historic site, a Nationally Important Bird Area (IBA), and a Nationally Important Reptile and Amphibian Area (IMPARA).