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Los Arenales Rock Climbing 

Photos:  Recent | Best | Popular
Elevation: 9,000'
Location: -33.61959, -69.50999 View Map  Incorrect?
Page Views: 7,650
Administrators: Mauricio Herrera Cuadra, Tony Yeary, Kristine Hoffman (sitewide)
Submitted By: Mauricio Herrera Cuadra on May 18, 2012  with updates from Mauricio Herrera Cuadra
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The Arenales valley is one of the best climbing destinations in central argentina, if not the best. It offers everything from bouldering to aid climbing, with the majority being multipitch trad on the vertical seas of varicolored granites. A lifetime of climbing can be expected from this area, and for every trad line that is up, there are 10 more waiting to be put up. Difficulties go from 5.5 to 5.12+.

Camping is free, but you must register with the park rangers at the lower entrance, the rangers are extremely friendly and outgoing. There is sport climbing right above the ranger station and trad on the other side of the valley. There is a mountain refuge hut in south branch of the valley leading up to the landslides and cerro tupungato, you can bivvy there for free. The water running in the stream next to the hut is drinkable and is perhaps the purest and best tasting you'll ever try. However, water treatment may be necessary since there may be dead animals further upstream. (I found a dead cow in 2010 a quarter mile upstream.)

Mind the weather and the seasons, the elevation at Arenales is around 3000 meters and the valleys will get heavy snow in winter. The weather is nice enough for climbing between october and april.

Getting There 


Climbing Season

Weather station 71.5 miles from here

8 Total Climbing Routes

['4 Stars',2],['3 Stars',5],['2 Stars',1],['1 Star',0],['Bomb',0]

Classic Climbing Routes in Los Arenales

Mountain Project's determination of the classic, most popular, highest rated climbing routes for Los Arenales:
Mejor No Hablar de Ciertas Cosas   5.10d 6b+ 21 VII+ 21 E3 5b     Trad, 14 pitches, 1500'   Grupo Cohete : Aguja El Cohete
Browse More Rock Climbing Classics in Los Arenales

Featured Route For Los Arenales
Rock Climbing Photo: This is Cohete. The route begins in the gully and ...

Mejor No Hablar de Ciertas Cosas 5.10d 6b+ 21 VII+ 21 E3 5b  South America : Argentina : ... : Aguja El Cohete
P1 - P5) Start up the rotten gully for about 600 feet. We simuled it but you could pitch it out. There are bolt anchors about every 40 meters as you go. You will rappel back down this gully. All of this is maybe max 5.8 and mostly even easier than that (5.8, 200m).P6) At the end of the gully, walk right and up dirt/rock ledges to the saddle. Climb the low angle dihedral (5.8) to the end an do a rather improbable traverse around the back side of the mini tower (5.9) to get to the main headwall an...[more]   Browse More Classics in International

Photos of Los Arenales Slideshow Add Photo
Rock Climbing Photo: The trailhead.
BETA PHOTO: The trailhead.
Rock Climbing Photo: Refugio.
BETA PHOTO: Refugio.
Rock Climbing Photo: A view from the refugio
A view from the refugio

Comments on Los Arenales Add Comment
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By kirkadirka
From: Boulder
Jan 20, 2014
More beta on Arenales.

Trailhead and Approach

The trailhead involves driving on many kilometers of gravel road west of Tunuyán. We barely made it with a low clearance 2wd vehicle. If coming by public transport or a very low clearance vehicle a shuttle may be arranged by stopping at the market near the giant Jesu Christo statue (where the road turns to gravel).

You will also need to pass through Aduana as the valley is very close to the Chile border. Passport required.

Many people camp at the trailhead but a much nicer option is to hike the ~15 minutes up to the refugio.

Approaches to climbing areas from the refugio range from 30 minutes to a half day. Bouldering and several sport climbs are literally within seconds of the refugio. Several areas with high concentrations of climbs may warrant leaving your gear stashed for several days.


The refugio is very basic and offers a place to take shelter, store food and trash. Many people cook here and some people even sleep inside but it is small and in poor condition as of 2014.


Water is available from streams that run all over the valley. I drank without treatment but YMMV. Cows graze the valleys and shit everywhere. Treatment may be prudent.


The bathroom situation is already beginning to become a problem around the refugio and camping areas. Bring a shovel to dig cat holes or a latrine for your stay. Or, even better, pack it out.


Cows are everywhere and aggressive. Food and trash should be kept in the refugio or hung above ground. Prickly plants are also abundant throughtout the valley. I found a sliver kit to be useful on numerous occasions.


A guidebook is currently available by Mauricio Fernandez and is already in 3rd addition (2009). It can be purchased at climbing shops in Mendoza. It became apparent after just several days that only a fraction of the existing routes are currently documented. Another guidebook is apparently in the works as well. Also, check out:
By claytown
From: Boulder, CO
Nov 24, 2014
Update to Kirk's beta from our trips to Arenales in November 2014.

Most importantly, the road is currently better and is passable by a regular 2WD car. This is important, because we tried to figure out various ways to get here from Mendoza and unfortunately, we couldn't find a really cheap option. Public transport to Tunuyan or another town and then a private ride up to the park itself costs about $200 round trip. Renting the cheapest, smallest car possible in Mendoza for a 4 day trip can be a little less than that and give you more flexibility. If there was a bunch of rain recently, the road might be worse.

The book mentioned by Kirk is good for route info. We bought it at a Mendoza gear shop for about $20 US. It also includes some other areas around Mendoza besides Arenales. There is also a good beta picture of the canyon on the website Kirk mentions.

If you wanted to climb at the lowest walls (which have some great rock and great routes), you can park just before the entrance / control point and avoid the passport / checkpoint issue. The parking is on the left a few hundred meters before the control point.
By kirkadirka
From: Boulder
Dec 28, 2016
New guidebook is available! Nacho´s new guide is top notch.

Over 450 routes now in Arenales, with loads of potential left.

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