Works Execution Contract For The Adaptation Of The Natural-Monumental Itinerary Of The Barbadun River As It Passes Through Muskiz And Galdames And Its Connection With The Green Via In Muskiz, Acts 3 Of Axis 1 And 1 Of Axis 2 Of The Pstd The Origin. Mountain, Iron And Sea. Consolidation Of Enkarterri- Meatzaldea As Destination Of Industrial Tourism Thanks To Its Rich Natural And Cultural Landscape), Within The Framework Of The Recovery, Transformation And Resilience - Funded By The European Union - Nextnerationu.