variety of terrain, proximity to Ottawa
crowds on weekends
Though often slagged by locals for its size and crowds, Camp Fortune is a pretty decent place to ski for being 15 minutes from downtown Ottawa.
For those learning, the variety of terrain allows beginners to start with the easiest magic carpet run, then progress to easy greens (Allen's Alley), easy blues like Marshall and Clifford, to more difficult blues like Sparks - and finally easy blacks like Slalom.
For advanced skiers, the runs on Skyline are pretty decent. Though not the longest, they have a relatively consistent fall line of these trails makes for a great place to get a few runs in when the snow is good. As a bonus, there's a parking lot at Skyline so you can avoid the crowds of the main lodge area.
The crowds.. Fortune's biggest knock. On weekends during the high season there are lesson programs that can make the lift lines ridiculous. For weekend skiing, I suggest driving further out to a bigger hill. Fortune is best as a place to get a few quick runs on weekdays.