From the village it first goes along an old oxen path to the A-2205, after you have crossed it you continue on a wide dirt road to a crossing that is indicated. The trail now continues through a forest and descends into the Barranco Arruellos. In the rugged valley it goes back up steeply to the next indicated crossing. Here you walk back and forth to the Portal Cunarda. To go all the way to the window you need the last few meters of hands and feet but it is not necessary to go all the way to view this natural phenomenon. You return to the last intersection and continue straight on to a wide dirt road. Here you turn right and keep following the dirt road until you reach the first junction. From there it goes back to the starting point via the same route.