Changbai Mountain is particularly beautiful, and you must go to Tianchi for a trip. Changbai Mountain is limited to 20,000 people a day. When we went, we had 10,000 people in the park. After a while of teammates, the number of people went up to 2,000. . . The Wu pressure group queuing at the ticket office, and tickets were sold in batches. We scanned the code directly with the e-ticket to enter the park, very smooth, smooth all the way, at least an hour and a half saved! Especially cool!