We went to Quebec City last year. It wasn't very fun really. The first day was a ten hour drive, and then we had to tour around Old Quebec City, which I didn't find very interesting. Second day we went to Montmorency Falls and Old Quebec City again. Afterwards we spent like 4 hours in a shopping mall that had nothing in it, and then we watched Spiderman 3 at the IMAX (sadly, that was the best part of the trip for me).
Last day was really horrible, because we were leaving at night, the bus driver had to sleep all day.
Which meant we walked EVERYWHERE. We walked from Les Plaines D'Abraham to some sort of government building, to the Citadel, and then to Old Quebec city, where we stayed until some boat cruise thing that I hated.
Honestly, if I could go back to before the trip, I totally would stay home. It was NOT worth the money, and I didn't have fun. I don't mean to sound ungrateful.
And to top it all off, I didn't sleep at all the entire bus ride home, so I came home, slept a couple of hours and had to go to my brothers graduation completely exhausted.