Hengyang railway station is near. Take bus No.24 in the square to the main gate of South China University. If you haven't been there, don't take bus 18. There is no sign of South China University on Chuanshan Road. Even if you haven't stopped, you have to detour for half a day to get into the campus. You'd better take bus no.24. Get off and go straight to the main school gate. It is convenient to go anywhere.