This tunnel was made to bring water from the source of the Borosa River and the Aguas Negras lagoon to the hydroelectric plant. Inside there are quite dark sections, so it is good to bring a flashlight.
We are a few kilometers from the source of the Guadalquivir River, right where the flow is enclosed between rock walls called "Cerrada del Utrero", whose path takes us to …
The limestone fortress of the mountain seems inaccessible, it is a labyrinth of towers, spiers and canals, which are called trancos in the mountains. The path continues east along the …
In this ravine you can see how the water circulates in a small section of about 50m, in the entire part of the boulevard it flows below and you cannot see