Bonjour Marie-Josée! In the past, Walt Disney World has offered free
Disney Dining Plan during select dates. It's a fantastic deal, and one
of the most popular special offers! Unfortunately, we don't know in
advance what offers will be offered and when. I recommend doing what I
do, which is checking the
Disney World Special Offers webpage regularly. Great offers pop up with notice and fill up quickly, so book it as soon as you see an offer that works for you!
Be sure you are viewing offers specific to Canadian residents as well. To do this, select the Canadian version under the "Select an International Version" tab at the bottom right of the webpage. RIght now, Canadians can save 30% on select resorts from February 21 through June 14, 2012, but must be booked by March 31, 2012.
Hope this helps Marie-Josée! Write back with any other questions you may have!