Start point: there are two options, el Paso and Alto de Aguilares.

From el Paso the route starts on the track heading south towards Arguedas, traversing La Blanca Alta, until we reach the perimeter track circling the Military Zone. From the Alto de Aguilares take the track leading you directly to Castildetierra (if you prefer you can also take the road as far as the entrance to the military barracks) where you can pick up the perimeter trail. Both routes circle the military zone. The loop can be done in either direction. The route takes you past some of the most emblematic places of the Bardenas: Castildetierra, Pisquerra, Rallón…