Après ski is literally French for "after ski," and it's a general phrase to describe the social activities that take place after a day spent hitting the slopes.
Skiing is really a social activity, while also being an independent activity. So people, they share experiences on the chairlift up the mountain, but they're kind of off doing their own thing. They may go off and experience different parts of the mountain, but then everybody comes together at the end of the day and meets up for an après ski drink."
Join activities such as:
Funny photo booth with thematic props
Get a themed drink at the winter bar
Have fun snow tubbing
Relax around the camp fire and roast a marshmallow
Join the outdoor cinema for your favourite Christmas movie
Bring a snowman to life
Join the ski outfit fashion contest and win prizes
And many more!