The Spa at Four Seasons Resort and Residences Vail, in the city of Vail in the state of Colorado, offers a luxurious steam room as part of their high-end spa facilities. This exclusive spa destination provides full-day access to their thermal amenities for guests with treatment bookings, making it ideal for pre and post-mountain activities. While the spa commands premium prices starting around $1,600 for couples' treatments, guests consistently praise the comprehensive amenities, attentive service, and overall luxurious experience.