If you want countryside riding, than go to chelsea in the Parc de la Gatineau (10 minutes from Ottawa, 2 hours from Mtl). If your in Montreal, you have to fight with crazy drivers and swirve around tons of hippies on crappy recycled mountain bikes.
Anyways, I've never been to Gaspésie, but its supposed to be really nice. I recently went to Baie-st-paul (on the other side of the Fleuve St-Laurent) and saw tons of roadies attacking crazy hills. The scenery is breathtaking and the people are friendly.
Oh yeah, and try to learn a few french words, like oui, non, merci, bonjour, etc. We really like it when people atleast try to communicate in our langage, even if its with a crazy accent.