The San Adrián Tunnel

Dive into history through the San Adrián Tunnel, located in Zegama.

This natural passage was an important pilgrimage and commercial route, connecting the Gipuzkoa and Álava regions.

When walking through this tunnel, you will follow in the steps of historical travellers, discovering a path that has borne witness to centuries of history, which served as an access path to the mountains from the Bronze Age to the Middle Ages.

When Gipuzkoa and Álava became part of the Crown of Castile, the San Adrián Tunnel was an essential passageway connecting the plateau to Europe and the Cantabrian Sea. Its importance grew when UNESCO incorporated the San Adrián Tunnel and road into the famous Way of St. James in 2015.

Located near Zegama, access to the San Adrián Tunnel can be found starting in Otzaurte through a fascinating hiking trail that takes approximately one hour.

This path winds through a captivating environment, offering spectacular panoramic views from the San Adrián balcony viewpoint.

Here, you will be delighted by the imposing beauty of the Aizkorri-Aratz Natural Park, and enjoy dazzling vistas spanning Gipuzkoa as well as Navarre, creating an unforgettable experience in the heart of the Basque Country.