Fieldwork is widely reported to be an effective learning and teaching tool. The authors report here how international fieldwork has enabled successful cross-phase collaboration to the benefit of both school and university geography departments. Eleven years' experience of joint A-level and university geography fieldwork in the French Alps and Romania is evaluated and the benefits and challenges for both school and universities are explored. Overwhelmingly evaluations have been positive from all perspectives, and collaborative school-university fieldwork is seen as important in demystifying the university experience for school students. The outcomes of this collaboration are discussed here in the context of transition from school to university studies. (Contains 4 tables and 1 note.)