This cultural itinerary explores the historic significance of El Rec Comtal, an ancient waterway in Barcelona, showcasing its importance in the city’s development over centuries. Participants will traverse the path of this iconic water conduit, which was vital for irrigation and water supply, learning about its architectural elements and the communities it served. The tour will highlight not only the historical aspects but also the environmental impact and the architectural features observed along the route. It promises an enriching experience that connects the past to the present through the lens of urban development and sustainability.