About us. The Spa at the Woods is the premier spa in Killington, Vermont, with a full-service Spa and Wellness treatments, and an indoor pool, hot tub, steam and sauna, and a fully-equipped fitness center. ```Duties```. Lead fitness classes and provide instruction to participants. Create and implement dynamic and engaging workout routines. Educate participants on proper form, technique, and safety precautions. Offer modifications and adaptations ...