PurposeTourists are increasingly co-creating meaningful experiences and demonstrating a growing preference for sustainable travel choices. In response, this study investigates the co-created sustainable tourist experience in the Bahamas.Design/methodology/approachDrawing on sustainable consumption theory and co-creation theory, it aimed to develop a more comprehensive framework that encompasses the entire spectrum of the sustainable tourist experience. Data from 25 in-depth interviews and participant observation were analyzed using an inductive-deductive method.FindingsThe analysis revealed multiple aspects of sustainable tourist experience, including sustainable consumption dimensions (environmental, social/individual, social/interactive, economic and institutional) and co-creation phases (co-production, value-in-use and co-creation), along with travel stages (pre-trip, on-site and post-trip). Based on these insights, this study developed a framework that delineates the mechanism of sustainable tourist experience.Practical implicationsThis study outlines managerial implications for the tourism and hospitality industry, highlighting sustainability as central to the tourist experience. Destination planners are encouraged to promote sustainable initiatives that align with tourists’ desires to co-create experiences, enhancing satisfaction, supporting destination sustainability and contributing to long-term industry viability.Originality/valueThe findings contribute to existing research on co-created, across-stage sustainable tourist experiences by presenting a holistic framework that elucidates the underlying mechanisms. This study extends existing conceptual studies by offering a deeper understanding of how tourists interact and co-create with destinations, emphasizing the need to integrate sustainability more effectively into the tourist experience across all stages of travel.