The stage: the only large-scale canyon in Catalonia that is still unspoiled, uninterrupted by roads, railways or electricity cables. The set: a river, some impressive rocks, and breathtaking views. The background music: a silence broken only by bearded vultures and other birds of prey beating their wings. The cast: anybody ready for an adventure trail, not suitable for people suffering from vertigo but otherwise well laid out and safe for hikers of all ages. The show is about to begin!