The Campus tour takes place directly after the BBQ.
Some of your Buddies will give you a campus tour to show you some places that might come in handy during your master's, such as the Green Office, Faculty of Humanities, the campus bookstore Akademika, Health Services, the UiO card centre, the Main University Library (and the Library of things) and the Academic Writing Centre, the UiO Rooftop garden, etc.
The event is optional.