At the northern end of the Appalachian mountain range, just north of the border with the United States, lies Mont-Megantic National Park, which is named for the 1105 meter (3625 foot) tall mountain at its center. Criss-crossed with hiking and snow-shoeing trails, the mountain is also a grueling challenge for those that choose to cycle along the road that leads to the observatory at its peak.
What may prove to be most interesting the park's status as a dark sky observatory, meaning that camping here or even the use of public telescopes in the observatory will provide you a sky without the distracting glow of civilization. During the day, hike the park, while at night taking advantage of a corner of the world where you can be in touch with the stars in all of their splendor.
Note:Nearby Mount Joseph has also been known as a hang gliding location of note, particularly because the high altitude record for Quebec was set here. The Thetford Mines hang gliding club occasionally uses this take off point if you are interested.