All campuses except for Parra have on campus accom and a large proportion of international students, its just that its only really the international students and the on campus kids that go to the lat night parties becuase they dont end to 1am, and by then trains have finished, and due to the distance that Quakers Hill is, its kinda hard for people to get home...
Even if your campus does not have parties and such, there is the UWs cruise (which I'm assuming is running again this year cuz it has the following 2 years). Thats a lot of fun, unlimited booze!!!!!, and its all campuses combined and you cruise around the harbour....
UWSConnect runs a lot of events through the semester. Last year we had the Drink the pub dry, and I also here Penrith campus had good parties on thursdays at the Swamp bar too.