Students are heading back to UC Davis in anticipation of the start of classes, which begin Thursday, Sept. 24. "Fall Welcome '92" officially begins Sunday, Sept. 20, when on-campus residence halls open for students. About 17,370 undergraduates are expected this the fall quarter. Total campus enrollment for the fall is projected to be 22,715. For the news media, there are numerous visual opportunities including students purchasing books and supplies at the campus bookstore and seeking help at the financial aid office. Recreation Hall is a place where students "just do it" by playing basketball, lifting weights or playing racquetball. Tip by Paul Pfotenhauer, News Service, 752-6397.