What: A capacious slopeside sanctuary at the Montage Deer Valley, with a gym, four-lane lap pool, indoor hot tub, and men's and women's club-style locker rooms with massive saunas, steam rooms, and a cold deluge.
The look: Floor-to-ceiling windows with views of serene, snow-dolloped pines enliven slightly sterile treatment rooms. The mosaic-tiled four-lane lap pool takes its inspiration from Hearst Castle's.
Who goes: Movie starlets relaxing before walking the red carpet at Sundance.
The treatment: The Après Ease starts with a mud wrap that detoxifies while soothing sore muscles and finishes with a customized hydromassage.
P.S.: Start your day with a pre-ski yoga class in the spa's studioit has spectacular mountain views.