The natural and heritage assets constitute the main tourist resource of the territories bathed by the Douro / Douro River (Flumen Durius, in Latin). For this reason, the main objective of the project is to preserve them and to communicate them in order to increase visitor flows and achieve greater economic growth. For this reason, Flumen Durius wants to propose sustainable models to preserve the tangible and intangible heritage, reinforce the joint image and the tourist services using ICT and social networks and to promote a quality tourism.