"The European coastline presents a large number of tourist destinations, with a great variety of historic, natural sites and remarkable landscapes. However, the European harbor cities do not necessarily benefit from the same tourist interest: they are appreciated for their infrastructures and conveniences (marina, transport, trade, hotel capacities), serve commonly as a base for the organization of the tourist stays, and are more rarely considered as tourist destinations by themselves.Yet, these cities have a rich heritage that is often poorly known, representative of a major history and urban culture: architecture linked with traditional, industrial or military activities from the Middle Ages to the present day (warehouses, customs buildings, wharves , etc.), intangible heritage (music, popular traditions, fishing techniques, etc.), naval heritage, ... which bears witness to a history still present.These once prosperous cities and popular neighborhoods have not always known or been able to highlight their wealth and are, wrongly, often neglected by tour operators, tourism professionals, and by the tourists themselves who see them mainly as a place of passage or an element of picturesque scenery to eat.Tourism professionals, like all locals in contact with visitors, do not have the necessary tools to make these places attractive to visitors. Moreover, the appropriation of this heritage by actors and inhabitants, necessary to ensure its conservation and long-term development, also deserves appropriate techniques and tools.The ""Heritage Harbor Story Telling -HHST"" project mobilizes 6 European partners - tourist organizations, cultural associations, training organizations - in 4 European port cities: Bastia (Corsica, France), split (Croatia), Piraeus (Greece) and Catania (Sicily, Italy). It is coordinated by the Office of Intercommunal Tourism Bastia.HHST aims to develop a tourism and social approach for the enhancement of port heritage, by strengthening the social and heritage skills of professional and volunteer actors who contribute to the port activity: entrepreneurs, fishermen, traders, tourist offices and guides, heritage development associations, residents ... The reinforcement of these skills will be based in particular on heritage interpretation training adapted to the profiles of the public and to the specificities of port heritage, which for a large part is part of an economic history still alive. The objective is to make all these actors ambassadors of the heritage of their ports, by valuing the complementarity of the points of view and the competences and constituting multi-thematic discovery paths where each actor constitutes a resource person.All professionals and citizen volunteers willing to work or simply develop an active citizen engagement on these sites will have new tools to bring a cultural experience to visitors.By making it possible to develop the attractiveness of these neighborhoods and increase the length of stay of visiting visitors, this new competence of professionals and local tourism stakeholders will benefit port cities more generally.The HHST project proposes to respond to issues raised by developing:- a participatory method for the appropriation and tourism development of this ""hidden"" heritage,- a stakeholder training framework based on a strengthening of heritage knowledge, the transmission of the contributions of heritage interpretation, the development of communication and mediation techniques applied to port heritage,- An online training tool, to sustain the training process,- An application of these methods and training contents through the creation of 4 cultural tourism routes aimed at discovering port heritage in the 4 partner cities.Cooperation between actors in Euro-Mediterranean port cities makes it possible to integrate the common historical and functional elements of port heritage into the training method and content. In the long term, it also enables the development of a real European network of tourism projects aimed at enhancing the heritage of ports and built from the same participative method. Finally, the transnational approach contributes to the emergence of an active European citizenship based on the reappropriation and enhancement of a common heritage."