Announcement on cleaning and disinfection of Zhuangwei Sand Dune Ecological Park: Disinfection operations will be carried out in outdoor parks, visitor centers, exhibition halls, public toilets and other spaces from 15:30 to 17:30 on July 21, 2015 (Monday); the visitor center, exhibition halls and public toilets will be cleared in advance at 16:00 and closed at 16:30. We apologize for any inconvenience caused to tourists.