The Fitness Center at Ottawa Marriott Hotel
Ottawa Marriott Hotel's fitness center is mentioned by travel writers. Of the 2 reviews that we tracked, 2 acknowledged the fitness center, like Star Service and Oyster.
Ottawa Marriott Hotel 
Star Service
Oyster
Star Service "The Kent Club provides a particularly nice gym, with separate rooms for aerobics, spa services and weight lifting, as well as a lap pool, whirlpool and sauna"
Oyster "There's a full lineup of features, including an indoor pool and sauna, a sizable gym, and kid-centric activities like game rooms and play space, but breakfast and parking cost extra"
