In this study, I take up the task to work towards a theoretical and methodological framework that allows using sustainability as a threshold concept for critically evaluating the assumptions embedded in both tourism management theory and practice. As a threshold concept sustainability represents a conceptual gateway that not only leads tourism management researchers and educators towards previous inaccessible ways of understanding the relationship between business, society and the natural environment but also invite them into new ways of acting and relating in the tourism world (see García-Rosell 2013, Meyer & Land 2005). From this perspective, sustainability is understood as a means of subjecting the basic premises of tourism management to refinement, revision and transformation so that they are in affinity with the principles of economic, environmental and social sustainability.