Purpose: To introduce the campus sustainability assessment framework (CSAF) as a campus sustainability audit methodology; to share student campus sustainability audit research; to reflect on using the CSAF for pedagogy; to review the usefulness of the CSAF as an action research instrument; to encourage other faculty/sustainability educators to incorporate the CSAF into their curriculum; to present the Sierra Youth Coalition, Canada Sustainable Campuses project as a campaign worth emulating in other countries; to build the body of knowledge in using sustainability audits to integrate research, education, and campus operations. Design/methodology/approach: The paper describes the Sierra Youth Coalition Sustainable Campuses project, a national student campus sustainability campaign in Canada, and how its campaign tool, the CSAF, was implemented at the University of Prince Edward Island (UPEI) to facilitate project-based sustainability education. The paper shares the author's rationale and experience of using the CSAF to conduct UPEI's first campus sustainability audit, and of offering the CSAF for course credit. Findings: The UPEI CSAF experience suggests the CSAF is a constructive tool for post-secondary sustainability education; that it is possible to assess the ten CSAF sections (water, materials, air, energy, land; health and wellbeing, community, knowledge, governance, economy and wealth) and the total of 169 indicators in less than one academic year; and that students value the hands-on learning, practical outcomes, and national recognition afforded by conducting a campus sustainability audit using the CSAF. Practical implications: The UPEI experience can encourage other universities and colleges, in particular post-secondary institutions in Canada, in synergizing sustainability research, education, and campus operations. Originality/value: The paper will help Canadian faculty to evaluate the CSAF as a pedagogical tool and as an audit instrument. Non-Canadian readers may glean insights for integrating student activism into higher education for sustainability. Researchers, educators, and university administrators keen to improve the sustainability performance of their institution can benefit by learning from UPEI's integrative approach. (Contains 1 figure and 2 notes.)