Who don’t need to pay for the entrance ticket?

　　Class I: children at a height of less than 1.2m (inclusive), the senior aged above 70 (inclusive);

　　Class II: the disabled who hold the Disability Certificate;

　　Class III: military personnel in active service who hold the military certificate, and disabled servicemen, retired servicemen who hold the certificate of disabled serviceman.

　　Class IV: tour guides holding the certificate of tour guide issued by the National Tourism Administration, who are leading tour groups;

　　Only the entrance ticket is gratis, not the liner ticket.