This means you can ski to/from your chalet/apartment without having to use a lift. That's the idea - how it's phrased depends on the rest of the sentence.

La montagne à l’état pur, sans voiture Un séjour skis aux pieds, sans souci Un accueil professionnel et personnalisé, sans faille Un hébergement rénové ...
wwwedu.ge.ch/cptic/formation/doc_cours/ cours_216/tignes/innovations.html

C'est ski aux pieds que vous rejoindrez vos appartements - parfaits pour des ... literally on the ski slopes, pop your skis on, and off you go - ski right back ...
www.lasauge.com/pages/3/ - 15k


Ski to the door of this high quality chalet in the Chamonix valley - delicious food, fine wines, warm atmosphere, 1st class service and stunning accommodation ...
www.mountainretreats.co.uk

... Ski from your front door Why waste time battling to get to the slopes when you can hit the snow from your doorstep? ... You can ski from the door to the piste. ...
sport.guardian.co.uk/Observer/travel/ story/0,6903,800909,00.html

... Our luxurious Black Bear Chalet with ski to the door convenience sleeps up to 14 people, has 3 bathrooms, fully-equipped kitchen, outdoor hot tub and vaulted ...
www.britishcolumbia.com/Ski/resorts/?id=18