This chapter proposes the use of the deterritorialization concept derived from the postmodern theories for tourism research. It is argued that the concept of deterritorialization helps to illuminate the changing patterns of territorial identity and morphological landscape. There are three aims of this chapter. Firstly, it draws on postmodern and poststructuralist theory to delineate deterritorialization as an important method in tourism research. Secondly, it applies critical discourse analysis and in-depth interviews to the Westergasfabriek cultural and recreational park in Amsterdam, the Netherlands, to construct a progressive relationship with respect to tourism development. Thirdly, the chapter strives to be a basis for a new form of research methods in the postmodern era, helping to understand and monitor change in the context of destination identity.