Parks Canada , also known as the Parks Canada Agency , is an agency of the Government of Canada run by the Minister of the Environment, who mandates it to protect and present nationally significant natural and cultural heritage, and foster public understanding, appreciation, and enjoyment in ways that ensure their ecological and integrity for present and future generations. Parks Canada manages 46 National Parks, four National Marine Conservation Areas, 168 National Historic Sites, and one National Landmark. The agency also administers lands and waters set aside as potential national parklands, including eight National Park Reserves and one National Marine Conservation Area Reserve. The Canadian Register of Historic Places is supported and managed by Parks Canada, in collaboration with provincial and territorial governments and other federal bodies.