Four Seasons Hotel Philadelphia

The Spa at Four Seasons Hotel Philadelphia sits on the 57th floor, with over 700 lbs of healing crystals set into its walls. Its Heat Experience, located in the locker area, includes a sauna, steam room and ice fountain, complimentary for hotel guests and spa service guests but closed to salon guests and restricted to ages 17 and over. Spa treatments run 8:00 AM to 8:00 PM. The 57th-floor infinity-edge pool, open 6:00 AM to 10:00 PM, is reserved for hotel guests.