Need. According to official website's inquiry about traveling in the same city, the gymnasium of Marriott Hotel is open 24 hours a day, and you can exercise for free with your room card. 10: 00-22: 00 There is a service staff at the reception desk. After 22: 00, hotel guests swipe their cards to enter. So the Marriott hotel gym has to swipe its card. JW Marriott Hotel is located in North America, the Caribbean and Latin America, Europe, Asia, the Middle East and Africa. Each hotel is unique, quiet and luxurious.