Tourism area development is affected by the competitive global tourism industry and the complex, multilevel dynamics of the contemporary network society. The strategic planning and governance challenge is stimulating tourism areas to become adaptive areas, being capable of responding to changing contexts in order to maintain or improve the performance of these areas as competitive tourism destinations. This article examines conditions for "adaptive tourism areas". It does so on the basis of a complex adaptive system (CAS) perspective on tourism area development. The perspective is used to conceptualise tourism areas as complex and potentially adaptive systems, and to discuss how tourism area development can be understood as a multilevel, co-evolutionary and path dependent process. Furthermore, the CAS perspective is used to draw attention to the importance of a degree of diversity in terms of tourism products, experiences and firms. Encouraging a degree of diversity requires among other things interconnectivity among actors to ease communication and coordination, (policy) experimentation for niche-innovations, learning and reflexivity. The article ends with a discussion on the potential of, and constraints on, pursuing adaptive tourism areas from a strategic planning and governance point of view.