Real Change: A New Plan For a Strong Middle Class (page 44)

"Up to $83.3 million over five years, starting in 2016–17, to provide free admission for all visitors to national parks, national marine conservation areas and national historic sites operated by the Agency in 2017, the 150th anniversary of Confederation, and to provide free admission for all children under 18 years of age, beginning in 2018." 

("Growing The Middle Class" Budget 2016-2017) 

« The federal government is making entry into the national parks and historic sites free in 2017 as a way to mark the 150th anniversary of Canada’s Confederation. In an emailed statement, Parks Canada said it means any passes purchased this year are valid for two years. “As a first step towards celebrating Canada150, Discovery Passes for 2016 will be valid for 24 months, rather than 12 months,” wrote Parks Canada’s Natalie Fay. “All Parks Canada Discovery Passes purchased in 2016 will be valid for 24 months from the date of purchase. (…) Starting in 2018, according to the same mandate letter, Parks Canada could also make admission for children under 18 free and provide any adult who has become a Canadian citizen in the previous 12 months with a year’s free admission to the national parks. »

(Calgary Herald, January 4, 2016)