This area used to be good but has been almost destroyed by construction of a large new house which has had the combined effect of cutting off access to rappel stations, dumping a lot of solid waste over the cliff face and continuing to drain sewage over the cliff face. It is still not impossible to climb here using trad gear for leading, but is at best unpleasant. If you want to try it I suggest also bringing a shovel and matts to make workable base areas.
There are no bolted lead climbs here so you will have to bring plenty of trad gear suitable for small-moderate vertical cracks. The base area can be accessed by foot from Rio Oro Arriba, but with some moderately difficult scrambling or by rappeling in from the vacant lot between Rio Oro Arriba and Rio Oro Abajo.
Anclajes: Existen dos arboles perfectos para hacer rappel a la base y usar como yo-yo. Tambien hay chapas en la parte de arriba de Amigos, Satan·s y El Pensador.