From the Las Navas track near the hill of Collado Bermejo, a forest trail leads off to the left and is closed to vehicles by a barrier: this is the start of the route. It is an easy descent through Corsican pines, ferns, ashes, maples, gall oaks, holm oaks, elms, a number of yews and holly trees, where the most characteristic fauna of the area can also be observed. 3 kilometres on from the starting point you will reach the stream known as Arroyo de la Reina, which you must cross in order to rejoin the trail. It is a stream that begins up in the high mountains, and makes its way down through narrow mountain passes.