In the context of a new global market order, this study aims to analyse one of the phases of tourism, in particular post-modern tourism, understanding its dilemmas and prospects for sustainable management. This work seeks to provide support for tourism planners and managers in cities that wish to become attractive destinations for visitors. Initially, the research looks at some of the references that have provided a conceptual basis for the subject in question, focusing on the elements that have contributed to the growth of tourism, and then presents the characteristics of mass tourism and its environmental impacts. Next, tourism in post-modern times and its correlation with environmental ethics are discussed. Finally, it is hoped that all the lessons learnt in this book will contribute to the promotion of different tourism management arrangements, based on the formation of new tourist profiles, as well as highlighting the importance of the constant search for innovative strategies to boost contemporary market niches.