Account mpanyong my son who starts school at Liaoning University

My son has been admitted at Liaoning University this year.He leaves in February.i want to accompany him for a few days then leave, but from his school I want to go to guandszou to do shopping for a few days.what type of Visa can I apply for, for myself. My son has the relevant documents from the University to apply, so he is sorted.if you can also advice about flights please. If we take flights from Johannesburg to Beijing, do we need another connecting flight to get to the University?