Little section south side used to. I am not sure if it still does. It's probably too expensive to light up the whole mountain. It'd too far from the city for anyone to show up from Montreal for nite skiing. And there are couple smaller hills in the area that have nite skiing (prob enough for locals). Tremblant is more of destination resorts so people go there for couple of days at a time (they can ski during the day) and on weekend people from the city show up. There are way too many hills with nite skiing around montreal for anyone to bother driving to Tremblant and back during the work week.