Admission to all of Canada's national parks, national historic sites and national marine conservation areas will be free for the entire year of 2017. A pass can be ordered from the park website. I'm not sure why a pass is necessary if admission is free. I also don't know if you can get a free pass at a park like you would do if you had to buy one. Anyway there isn't a time limit on getting the pass and there aren't a set number of passes available. Canadian parks are beautiful and the passes are normally expensive so this is a great opportunity for anyone who will be traveling in the north next year. http://www.pc.gc.ca/eng/index.aspx