Just looking on the Tremblant site and came across the T-Pack. Gives you two rounds at Le Géant for $99, or add $30 and you can play Diable twice or one of each. Rounds can be played with the following restrictions.

* Any time between May 2 and July 11 (Saturday after 12h p.m.)
* NEW ! Every Tuesdays of the season
* NEW ! Entire month of October.

Seems like a pretty good deal, I think I'm going to pick one up and head up to Tremblant at some point to try out the courses.