[Wormius]

Originally Posted by worth

You can buy a discovery pass for the remainder of 2016 which includes free admission for 2017.

You still need to pay to get into the park in 2016.

http://www.pc.gc.ca/eng/ar-sr/lpac-ppri/ced-ndp.aspx

Okay. So basically the "free" year is just a 2-for-1 deal on the annual passes.