Las Arañas is a set of several walls in the Forest of Los Remedios in Naucalpan. It has at least 3 clean walls were several ropes can be set to practice rope techniques like Rappel or Rope Ascension. The height of these walls are at least 15 meters (40-50 feet). One of the walls is also know as "Los Dedos" (The Fingers) because it is also used for traditional climbing with the principal use of your fingers in a small crack that runs vertically through the wall. By the end of the climb your fingers will be demanding some TLC hence the name.
These walls are frequented by cavers so that they can practice the different skills needed inside caves in a more secure environment. You will see them going up and down the rope several times. Just like if they were spiders going up and down their spider web thread. There is where the name came from.
The access to the anchors can be done from the top of the walls. Just aproach the walls from the south, then head east until you see the scramble up the hill. then just walk around the top to see which area you want to use.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.