Type of Visa to be applied by parents if they want to drop their son to University for BS studies

I am from Pakistan. My son is 20 years old, has completed his high school studies and his admission to Bachelor's programm (September 2016 intake) is under process in a Chinese university. Soon he would apply for study X type permit. I and my wife would like to accompany him to China and stay there for a week or ten days to help him adjust with new environment and fall entry permit visa should I apply for ?