We can divide the route into two parts: on the one hand a shorter first part but full of trails and a second longer one where the old roads take center stage.
In the aforementioned first part we walk along the paths of the Artaza area until we reach the NA-7187. After a short ride on asphalt, we reach the town of Baríndano. From here, we head for the Calderas de Argonga.
In this area we can cross the Uiarra River by the existing bridge or by the riverbed, which runs dry most of the year. Once we have passed this point, we start the ascent on a track in very good condition. At kilometer 14.5 we have the option to start the return or continue ascending until we reach the highest part of the Sierra de Lokiz. It is worth the effort because at the top we will be able to enjoy a path very close to the edge of the cut (without any danger) with spectacular views.
The descent is made by a fast track that leaves us on the path of Itxako. Here we must be careful with the slope on the left side of the trail to avoid scares. After 2 km of road, we face part of the beautiful trail that we have descended at the beginning before finishing the route.