This work examines the meaning and impact of physical activities along the Upper-Normandy coast. The aim of this socio-geographical approach was to determine the types of territorial negotiations at work by analyzing the mediating factors from several angles: coastal transformations concern both usages and representations, as well as the management of choices in environmental planning. We sought to elucidate the reciprocal determination of the various cultures, social relationships, and spatial relations. The corpus contains 39 interviews, 949 completed questionnaires, 187 observation sheets, and documents from several sources (departments of urban planning, the journals of concerned parties, administrative reports). In addition to defining the physical activities, this work presents the profiles of the practitioners and identifies the various landscapes of experience. Four case studies reconstruct the differences in scale, as well as the contradictory legitimacies that are involved (public/private, risk/security, sustainable development, etc.). Beyond all discourse, is the Upper-Normandy coastline the object of “integrated management”? What types of sharing and division do the recreational usages of this coastal area reflect?