Our goal in this walk is to cross the park. We will start from the outside agricultural boundaries of the park, and we will walk to the inside through foot trails in the forest. On our way we will visit the chapels of Sant Medir and Sant Adjuntori of Romanesque origin. We will later cross the area known as Font Groga, one of the park’s main ecological values. Finally, after ascending Mount Tibidabo along its northwest side (512 m. above sea level, tallest peak of Collserola), we will be rewarded with astonishing views over Barcelona.