"Built into the mountain, the facility features underground, vapor-filled caverns that provide a natural, underground steam room experience and are described as "one of only a few known natural vapor caves in North America that naturally let off therapeutic steam." - Evie Carrick Evie Carrick Evie Carrick is a writer and editor who’s lived in five countries and visited well over 50. She now splits her time between Colorado and Paris, ensuring she doesn't have to live without skiing or L'As du Fallafel. Travel + Leisure Editorial Guidelines