The project of cross-border cooperation in the field of eco-sustainable tourism aims at learning about and enhancing the landscape, history and culture of a wide geographical area which developed between the rivers Tagliamento and Isonzo. The first part of the project concerns the census and the historical documentation of the sites to be catalogued, the overview, the photo/video survey and the creation of computerized files. Then the itineraries will be defined; guides and information material will be published, and made available also on the Towns website. The objective consists in the promotion of three new itineraries along the riverways between the two regions, to favour a slow (nautical, cycling-pedestrian) sustainable mobility mainly in rural milieus. The project aims at retrieving the Roman and Medieval historical heritage, rediscovering the most interesting architectural items of the Venetian villas in the area, and learning more about the rural towns and villages. The itineraries created are: From San Tommaso to Palazzo Braida. Towards the Sea along the Tagliamento, From Chiesa di San Nicolo to the Casoni. From the Tagliamento to the hinterland, and From the lighthouse of Bibione to the house of the valley. Between the valleys and the sea. All itineraries were equipped with specially designed signage. In order to leave a memory of this human and professional experience, a publication was prepared entitled Artistic, historical and environmental itineraries consisting of two volumes, and lastly a CD-ROM is available presenting the itineraries identified through this study.