The park opens at 6 a.m. (6:30 a.m. in winter) and closes at 10 p.m. every day, but the buildings maintain more limited hours. Beijing Essential Full-Day Tour including Great Wall at Badaling ...
The best time to visit the park is late fall ... and on a clear day one can even make out the skyline of Beijing.
For more information, consult the park's official website. Private All-Inclusive Day Tour: Tiananmen Square, Forbidden City, Mutianyu Great Wall (1181 reviews) Beijing Essential Full-Day Tour ...