14: 30 to 20: 30. Official website of Bengbu Gymnasium shows that the swimming pool operates from Tuesday to Sunday 14:30-20:30, and there is an early swimming period on Saturday and Sunday from 9: 00-1:00. Swimming pool is a sports building mainly used for swimming, diving, water polo and other water sports. In ancient times, indoor swimming was often combined with bathing and entertainment activities, and the luxurious ancient Roman baths played the role of swimming pools.