Durham University there is no formal teaching at Durham colleges (with the exception of Cranmer Hall theological college within St John's), although colleges are active in research. The colleges dominate the residential, social, sporting, and pastoral functions within the university, and there is heavy student involvement in their operation. Formal dinners (known as "formals") are held at every college; gowns are worn to these events at just over half of the colleges. Gowns are not worn for formals at Collingwood, St Aidan's, St Cuthbert's, Hild Bede, Van Mildert, Stephenson or Ustinov. There is a great deal of intercollegiate rivalry, particularly in rowing
Colleges of the University of Otago to take place in their college. While the majority of the residential colleges are owned by the University, they each have their own internal management structures and College Council. Four colleges are privately owned and are governed entirely independently from the University. These are Selwyn College, Knox College, St Margaret's College, and Salmond College. A number of intercollegiate competitions are held, though often between pairs or subsets of the colleges. According to the university's prospectus, all colleges other than Toroa College have some inter-collegiate activities. Regular competitions include: An intercollegiate rowing competition was held in May 2010 which Unicol are