One of your first stops should be Rimouski Tourism Bureau. Here, you'll be able to orient yourself and get some great tips before you set out exploring.
To explore this tourist information center, head to Rimouski. You'll find loads of other worthwhile attractions in the area, such as University of Quebec at Rimouski, Pointe-au-Pere Maritime Historic Site, and Phare-De-Pointe-Au-Pere.