Line of climbers ascending a snow slope on the Normal Route.

Handmade mountaineering since 2001.

More than fifty years of mountaineering in one family. Today we operate both Aconcagua valleys with our own structure: 130 mules, base camps in Horcones and Vacas, high-altitude domes and a team that comes back every season.

Our best legacy is welcoming you to the mountain as if it were your home.

Guided expedition

I am here to climb Aconcagua

You climb with our guides, sleep in our camps and eat our food. Small groups, progressive acclimatisation and a programme that adjusts to how each person responds at altitude.

  • Normal Route, 360 Route and the Polish routes
  • Treks of 3 and 5 days
  • Certified guides and groups of up to 8 people
See expeditions and treks
Logistics package

I only need the logistics

You climb with your own guide, with your group or on your own. We handle the operation on the mountain: mules, base camp, domes in the high camps and permit management. No climbing guide, and nobody explaining how you have to climb your mountain.

  • For agencies, high-altitude mountaineering companies and independent guides
  • Also for climbers going up solo or in a rope team
  • Mules, base camp, high-altitude domes and portering
See logistics packages

Let's talk.

There is no cart and no automatic booking, and it isn't for lack of technology: an Aconcagua expedition is not bought like a plane ticket. Tell us what you have in mind and we'll put the proposal together by hand. We answer the same day.

Prefer to write directly?+54 9 2612 50-6186A person answers.

What do you need?

You climb with our guides. All mountain logistics included.

We quote per person according to date and group size. The Park permit and the insurance with helicopter evacuation are paid separately: we handle the paperwork for you, at no administrative charge.

We use your details only to answer this enquiry.

2026-2027 seasonNovember to March6,962 mAconcagua summit25 seasonsoperating in the Park130mules of our ownMendozaour own operations base24/7connectivity and assistance

Our expeditions and treks

From three days at the foot of the South Face to the summit of the Americas.

Every departure runs on the same structure: our camps, our mules, our people.

Climbing routes

The summit of Aconcagua, snow over rust-coloured rock, not a cloud in sight.6.962 MMost chosen

Normal Route

Entry via the Horcones · Base camp Plaza de Mulas, 4.350 m · Plaza Canadá, Nido de Cóndores, Berlín / Cólera

The classic line to the roof of the Americas through the Horcones Valley, with the best acclimatization profile and all the infrastructure on the mountain.

18 daysMax 880 km
Rope team traversing above the sea of clouds, rock spires to the right.6.962 M

360 Route

Entry via the Vacas · Base camp Plaza Argentina, 4.190 m · Exit via Horcones

The complete traverse: in through the Vacas Valley, summit via the Polish traverse and out through Horcones. The whole mountain in a single trip.

20 daysMax 6110 km
Very highView details
Line of climbers on a snowy ridge on the False Polish Traverse.6.962 MTailor-made

Other routes

Entry via the Vacas · Base camp Plaza Argentina, 4.190 m · Glaciar de los Polacos

Polish Direct and False Polish Glacier: private, tailor-made trips for rope teams with technical experience looking for a quieter line.

18–21 daysMax 4
Very highView details

Treks

A group celebrates with arms raised at the Plaza Francia viewpoint, Aconcagua's South Face behind them.4.200 M

Plaza Francia Trek

Entry via the Horcones · Base camp Plaza Francia, 4.200 m · Al pie de la Pared Sur

Three days up the Horcones Valley to the viewpoint at the foot of the South Face, one of the most imposing rock and ice walls on the planet.

3 daysMax 1030 km
ModerateView details
A trekker arrives at base camp, poles in hand, the snowy mountain ahead.4.350 M

Plaza de Mulas Trek

Entry via the Horcones · Base camp Plaza de Mulas, 4.350 m · Dos noches en domo

Five days to Aconcagua's base camp, by way of the South Face viewpoint.

5 daysMax 1067 km
DemandingView details
The group beside the cross at Valle de las Lágrimas, holding out a flag with the glacier behind.3.600 MTailor-made

Valley of Tears Trek

Cordillera de Malargüe · Sitio del accidente del Fairchild uruguayo, 1972

Three days in the Malargüe range to the site where the Uruguayan Fairchild crashed in 1972. A mountain trek carrying enormous historical weight.

3 daysMax 845 km
DemandingView details

They climb with us

Agencies and mountain guides who build their Aconcagua expeditions on our logistics in the valley and at the camps.

Madison Mountaineering
Climbing the Seven Summits
Rock & Ice Expeditions MX
MDQ Expediciones
NSY Outdoors
Julián Insarralde
AEX
Ksenia Kotliar
Tres Cumbres

For agencies, companies and guides

If you come with a group, you book packages.

You bring the group and the guide. We put up the mountain: mules for the cargo, base camp with full board, high-altitude domes, portering and the permit handled. One supplier, one contact, zero friction.

Every package states exactly what it includes. No grey areas, no fine print, no reinterpretations halfway through the season. We'd rather you know in advance what you are paying for than sell you flexibility and charge you for it later, at base camp, when you can no longer choose.

Basic

You don't pay for what you won't use. Mules, base camp with full board, toilets, WiFi and permit management. For self-sufficient teams that handle themselves in the city and in the high camps.

Full

Acclimatisation starts before the Park gate. Everything in Basic plus private transfers, pre-expedition hotel, a night at altitude and showers at base camp.

Full + Altitude

The weather doesn't charge you by the day. Everything in Full plus a shared dome in the high camps with unlimited nights: the group stays up as long as the window demands.

How we work

We talk, we build it, we run it.

  1. We talk before quoting

    The opposite of how it's done now. First we ask about your dates, your experience and how your group is doing; only then do we send numbers. You are answered by the person who will coordinate your expedition from Mendoza, not by a form.

  2. Transfers and cargo depot

    We pick you up at the airport and drop you at the Park gate. Your gear stays in our depot at Puente del Inca, less than 2 km from the entrance, where it is made up into loads and goes up by mule to base camp. That depot is the hinge between the Mendoza office and the mountain: everything going up and everything coming down passes through it.

  3. Camps and movement at altitude

    Our own infrastructure at Confluencia, Plaza de Mulas and Plaza Argentina, and portering between camps to spread the loads and reach summit day in one piece. If the mountain forces a change of plan, the plan changes.

  4. Connectivity and 24/7 assistance

    Our network links Mendoza, Puente del Inca, the base camps and the high-altitude domes. Daily weather report, immediate response and a closing report on the way down. In twenty-five seasons we have never lost track of where one of our groups is.

Base camp

Home cooking. At 4,350 metres.

Nancy runs it, one of the people with the most seasons at Plaza de Mulas: fresh bread in the morning, pasta and stews at night, dessert always, and menus for vegetarians, vegans and coeliacs. On an eighteen-day expedition, the quality of the rest and the food is what separates enduring from recovering. That's why we don't outsource the kitchen.

It is a house that also has what the mountain demands: our own domes with beds and dining room, toilets, hot showers, WiFi, generators, a radio network to Mendoza, health protocol and waste management to Park regulations. Both things at once.

At the base camp kitchen, a tray of fresh peppers and onions in front of the domes.

Since 2001

The first bar on Aconcagua. And the highest in the world.

In 2001 Eduardo Raggio opened the first bar on Aconcagua at Plaza de Mulas. Twenty-five seasons later it is still a compulsory stop for anyone climbing the Normal Route.

You arrive tired and you sit down. From there on, the mountain gets talked about.

In numbers

The infrastructure you use on the mountain is ours.

We are not middlemen. Every mule, every dome and every person you'll see on the mountain works for us.

2001
Operating in Aconcagua Provincial Park since day one
25
Consecutive seasons. 2026-2027 is number 26
130
Mules of our own for cargo transport
1st
The first bar on Aconcagua, and the highest in the world, since our first season
6,962 m
The highest point in the Americas
8
People per group, maximum, on a guided expedition

Responsible operation

How we look after what feeds us.

People

Muleteers, porters and camp staff hired on formal terms, with gear provided and loads within established limits. Much of our team comes back season after season.

The mountain

Everything that goes in comes out: waste carried down by mule, effluent managed to Park protocol and camps struck without leaving a trace.

Local community

We work with suppliers from Mendoza, Uspallata and Penitentes. The expedition has to leave value in the valley, not only in the city.

Animal welfare

Controlled loads per mule, rest respected between trips and veterinary checks on all 130. Luis, our head muleteer, runs it, with one of the best animal welfare records in the Park. The oldest trade on Aconcagua, applied to the care of the animal and not only to the load.

What they say

Mountaineers from all over the world, season after season.

Verified reviews from climbers who went up with us.

“It was truly a pleasure to meet the Pared Sur TEAM. The warmth with which they look after you, the delicacies they prepare. Everything EXCELLENT! See you soon, but via Plaza Argentina. Thanks for EVERYTHING!”
Diego Andres Franck
“An incredible place: the great attitude of Nancy and the guys who do the porter work, the best service you can find on Aconcagua, and the quality of its people!”
Laura Lischuk
“Everything excellent: they make the hardships of the adventure much easier to get through. I want to highlight the excellent care at “La Yeya” and Tincho’s camps at Confluencia, and from Lucas (total genius) and Nancy at Plaza de Mulas. Super happy and grateful!”
Lisandro Valdano
“Very good hospitality at the refuges in Plaza de Mulas and Confluencia. Thanks to Nancy, Yeya and all the staff. The domes at Nido and Berlin were very useful. There is always room for improvement, but I recommend it.”
Carlos Chianea
“Excellent all around, from handling the Aconcagua Park entry permit to sorting out any question or problem. Also excellent was the attention from Román in the city and from Luis at Puente del Inca.”
Nicolas Cersosimo
“Excellent service both at Confluencia and at Plaza de Mulas 🙌”
Vanesa Acosta
“We worked with Pared Sur two years in a row. Last year we climbed Aconcagua from Plaza Argentina and this year from Plaza de Mulas. On both occasions we were very satisfied with the company’s services.”
Lina Stejko
“We used Pared Sur's services for the third time and they always provide great service. This year we summited as a group. At the end of the expedition they arranged the mules and private transport for the next day, very convenient.”
Andrei Alexandrov

Before you start

What we get asked most.

How hard is it to climb Aconcagua?
It is demanding, but achievable for healthy, well-prepared people. The difficulty is not technical: it is in the altitude, the cold, the wind and in sustaining two and a half weeks of continuous effort. Summit day takes between 12 and 14 hours of activity. A good share of the athletes who don't make it underestimated those four factors, not the elevation gain.
Do I need to be a climber?
For the Normal Route, no. It is a long walk at altitude: you won't use a rope or climb. For the 360 Route and the Polish routes you do need to handle crampons and ice axe confidently.
Can I do it if I've never been above 5,000 metres?
Yes, it happens often, and that's why the programme lasts 18 days. That said: it is better to arrive with at least one 4,000 or 5,000 metre mountain behind you. Not for the technique, but to know how you respond to altitude before you are at 6,000.
Which route suits me?
The Normal Route if you want the best acclimatisation profile, the best infrastructure and the simplest logistics. The 360 Route if you want to cover both valleys, have more progressive acclimatisation and fewer people in the first half. The Polish routes if you have technical experience and are after a serious line. If you're not sure, write to us and we'll talk it through.
When is the best time?
The season runs from mid-November to the end of March. December, January and February bring the most stable windows. Late November and March tend to have fewer people and more cold.
What if the weather doesn't cooperate?
That's what the programme's reserve days are for. Aconcagua is close to the Pacific and the wind changes fast: we follow the forecast daily and move the plan if we have to. If the window doesn't appear, the call is made on safety grounds and is not up for discussion.
Is there a risk of altitude sickness?
Yes, for everyone. Headache, loss of appetite and poor sleep are normal above 4,000 m. What is not normal is breathlessness at rest, confusion or loss of coordination: that's when you go down. There is a Park medical service at every base camp and our guides are trained to read those signs before the problem gets big.

Certifications and endorsements

Asociación Argentina de Guías de MontañaAsociación Argentina de Guías de Montaña
Union of International Mountain Leader AssociationsUnion of International Mountain Leader Associations
Subcomisión de Nivología · AAGMSubcomisión de Nivología · AAGM

How we work, in four words.

  • Handmade
  • Human contact
  • Flexibility
  • Communication

Let's start

Let's start with your date.

Tell us when you plan to enter the Park and who you're coming with. We answer the same day, with a concrete proposal and a person with a name on the other end. The way it used to be done, and the way we still do it.