Don't. Xiamen University is free to visit, and no tickets are needed. From July 30, 2023, Xiamen University Citizen Campus resumed making an appointment to visit the campus. Just make an appointment in the real-name registration system through the WeChat applet and the official WeChat account of Xiamen University tourist reservation system, and you can make an appointment without spending any ticket fees. So Xiamen University doesn't need tickets to 60 yuan.