This is the route followed by the mail on its way to France during the 15th, 16th and 17th centuries. Today, this old route represents an alternative to the Camino de Santiago when heading towards the capital of Álava from the San Adrián tunnel, UNESCO World Heritage Site.
This linear route, signposted as the PR-A 13, begins in Zalduondo (Mandobide car park) alongside the Camino de Santiago. It leads us right until the heart of the Plain, allowing us to get up close to many elements bearing witness to the passage of time. The route ends at San Martín de Ania chapel.