Same as Ernie said... Tremblant is a nice place to visit and party with friends. College age group will probably have a terrific time over there.
As for riding..... well, it's really up to you. Here are your 2 choices:
1- Don't party at nights, go to bed early and wake up early to hit the slopes. Then go partying all afternoon !!!
2- Party like hell during nights, days and evenings and leave your board in the hotel room !
3- Yeah I changed my mind.. here's the 3rd choice: Take a ride to Mont-Blanc, 10-15 minutes from Tremblant. Family mountain, nice wide slopes, cheap tickets when compared to Tremblant.