Tourism represents an opportunity for boosting the development of underexplored and peri-urban areas. However, inadequate coordination of tourism services and infrastructure can generate fragmented and inefficient territorial systems. This research explores the tourism dynamics of the Wallonia region, with a specific focus on the area between Dinant and Namur. A multi-scalar analysis of regional, provincial, and national tourism trends highlights the predominance of domestic tourism and the resilience of the area during the global pandemic. Through the application of the STESY model, the study identifies Destination Areas based on attractors, accessibility, and services, revealing structural and infrastructural weaknesses that hinder integrated development. The design proposal developed for the Dinant-Namur corridor exemplifies a sustainable tourism strategy grounded in slow mobility, environmental protection, and the valorization of local heritage. Measures such as improved pedestrian and cycling networks, alternative mobility options, and cultural programming aim to reinforce local tourism ecosystems and promote responsible tourism practices. Despite limitations related to open data sources and limited stakeholder engagement, the project offers a replicable methodology for spatial analysis and tourism planning. As part of an academic studio course at the University of Basilicata, the proposal serves both as a didactic exercise and as a conceptual framework to test the downscaling of New Urban Agenda principles. Future research should integrate participatory planning and advanced geospatial tools to support tourism policy design in Wallonia.