Once at the top, we join the Passeig de les Aigües, one of the most emblematic spaces for cyclists and walkers in Barcelona. This old service road, now converted into a panoramic route, runs along the slope of Collserola with unique views over the entire city. As we progress, Barcelona spreads out at our feet: the Sagrada Família, the sea and, in the background, the port and Montjuïc mountain with its castle. The final descent, along a gentle, winding road, takes us to Plaça de Karl Marx, where we enter the city via cycle lanes to Plaça Catalunya, the end point of this stage and the end of the Grand Tour de Catalunya gravel route.