If you love hiking you have come to the right place. Valderejo is a spacious valley surrounded by steep slopes that culminate in rocks and crossed by nine trails, among which stands out the beautiful gorge of the Purón river, the scenic jewel of this Park.
In Valderejo you will find a varied fauna and flora. Its ornithological values are especially striking, and among its rocks is the largest colony of griffon vultures in the Basque Country.
In Lalastra, the heart of Valderejo, the Park House, which provides information on routes and services, and the Ethnographic Museum, which shows the history and customs of the valley, await you.