10:00-10:30; 13:30-13:50; 14:30-14:50; 15:30-15:50. According to Ctrip.com, the ticket to Guanxidong is 40 yuan. There are four cave music performances in Changyu Dongtian Scenic Area. The performance times are: 10:00-10:30; 13:30-13:50; 14:30-14 :50;15:30-15:50.