Embark on a scenic nature walk from Papiol to Valldoreix, where you will discover the hidden gems of the Collserola mountain range. This moderate hike combines natural beauty, geology, and panoramic views, making it accessible for regular walkers looking for an active morning. Starting at Papiol, the trail leads through lush landscapes to notable spots like the Puig del Rossinyol and the serene Ermita de la Salut, perfect for a brief pause to soak in the surroundings. Led by Mireia Querol Rovira, a biologist, participants are encouraged to wear comfortable clothing and hiking shoes, bringing along water and a light snack for this enriching outdoor experience.