Go above the crowds at this geometric gem on the edge of a conifer forest. A solarium packs in views from the topaz pool, and the glass-walled sauna and hammam are an exercise in Swiss minimalism. Stone columns and crystal goblets are here for the traditionalists, but a metal-clad fireplace is clearly central command. The stillness here is transfixing—and all just 8 minutes from historic Chamonix.