This book deals with a phenomenon that has been proliferating in Tunisia since the beginning of the twenty-first century: the production of new waterfront cities. A phenomenon that is a by-product of the country's littoralization, caused by a variety of factors, whether natural (essentially orobioclimatic), historical (inherited from colonialism) and/or political (dictated by the choices and orientations of the public authorities, mainly the post-independence state).The book consists of three chapters. The first chapter brings together three characteristics that define the portrait of these voluntary urban artifacts: their tendency to extraversion, their aspiration (and inspiration) to modernity, and their utopian imaginary. The second chapter classifies them according to the two main frames of reference to which they relate: tourism and ecology. The third chapter traces the genealogy of these artifacts-which are more than projects, but a historical movement-from before the establishment of the French protectorate to the present day.