Caius accept students doing all courses offered by the University of Cambridge, so no matter what you're studying, there's no reason to be put off!
All lectures, practicals/labs and demonstrations are done at respective departments. The only teaching that your college does is the supervisions. Supervisions in smaller subjects may take place at other colleges, allowing all colleges to take students from relatively minor subjects, such as Asian and Middle Eastern Studies, and Geography.
Anglo-Saxon, Norse and Celtic
Archaeology and Anthropology
Architecture
Asian and Middle Eastern Studies
Astrophysics
Classics
Computer Science
Economics
Engineering
English
Geography
History
History of Art
Land Economy
Law
Mathematics
Medicine
Modern and Medieval Languages (both post-A2)
Modern and Medieval Languages (incl. one from scratch)
Natural Sciences - Biological
Natural Sciences - Physical
Philosophy
Politics, Psychology & Sociology (PPS)
Theology & Religious Studies