There is a isolated line for online reservations with QR-Codes to enter the zoo more faster than paper-ticket holders. Just show the QR-Code to scan by staffs. Remember to get a paper map when you just get into the zoo. Recommend that visit the zoo as earlier as possible, because some areas have time limits, especially for someone who want to see the giant panda in the zoo, this place will be stopped at about 2.30 p.m.