The JW Marriott Chicago is a five-star hotel that offers a state-of-the-art fitness center for its guests. The gym features a wide range of exercise equipment, including cardio machines, weightlifting stations, and a dedicated area for yoga and Pilates. Guests can also take advantage of personal training sessions and fitness classes offered by the hotel. With its luxurious accommodations and convenient location, The JW Marriott Chicago is a top choice for travelers looking for a gym hotel in the city.