Each university and college is different, but most places will have clubs and societies for all popular recreations and interests. ‘Raising and Giving’ (RAG) societies are often busy on campus all year, organising stunts and fundraising for good causes.
The major political parties (and some minor ones too) usually have student branches, and there are cultural societies for people of ethnic minorities, international students and students of foreign languages. Religious and faith groups are also likely to be well represented on campus.