Live satellite broadcast hosted by Sarah Harmer. A Park for All Seasons – Managing a Canadian National Park in the 21st century is a unique and thrilling challenge. Environmental changes, migratory animals, encroaching development and recreational use are factors that must be handled carefully and constantly, but the payoff is spectacular. See two of Canada’s most beautiful national parks, Tuktut Nogait, a remote arctic park created to preserve a scarce Caribou population, and Pukaskwa National Park, on the shores of majestic Lake Superior, where ancient fish and soaring predators struggle to maintain a foothold in their environment.