The Fitness Center at The Westin Detroit Metropolitan Airport
The Westin Detroit Metropolitan Airport's fitness center is mentioned by writers. Of the 2 professionals that we tracked, 2 acknowledged the fitness center, including Gayot and Oyster.
The Westin Detroit Metropolitan Airport 
Gayot
Oyster
Gayot "You can swim laps at the indoor swimming pool, work out in the gym or schedule an in-room spa service to wind down and relax"
Oyster "Amenities include a full-service restaurant, large fitness center, indoor pool/whirlpool, concierge services, and meeting space"
