suspended footbridge at rio de mouros pathway in condeixa

adventure tourism trail bridge architecture construction design engineering supports canyon cliff face vegetation ecological elevated path footbridge forest canopy gorge crossing view green moss hanging hiking infrastructure limestone rocks covered mossy mountain natural formation landscape nature outdoor recreation rock rocky outcrop safe passage safety cables features scenic steel suspension connection walking walkway wilderness wire mesh wooden deck planks suspended rio mouros pathway condeixa spanning connects trails cliffs featuring lush setting coimbra portugal