Whenever you go up to Gaspésie —or down to Montréal— you have to stop at Mamie Pataterie Gourmande.
You HAVE to try the lobster club sandwich (and no it's not a recommendation, it's an order). With the lime mayo, of course.
Plus the raplapla are there, at Mamie Maison, in the middle of lots of wonderful and delicious stuff!
And the river is so beautiful...