4.0

Trek from Argentina to Chile Across the Andes

Traverse the spine of South America, hiking up and over the remote, high altitude Piuquenes Pass and wild camping under the stars

What's Included?

  • Activities & Certified GuidesAll itinerary activities with expert, local, English-speaking guides
  • All accommodation1 night in a hotel in Mendoza, 5 nights wild camping, and 1 night in a cabin
  • MealsAll breakfasts, 6 lunches and 6 dinners
  • TransfersAirport and local transfers, with porterage (by mule) of 10kg of personal luggage during the trek
  • EquipmentTents, cooking and safety equipment
  • Small Like-minded GroupsSolo-friendly by design, join our small n’ sociable groups of up to 12 like-minded, active and outdoorsy people

Fromexcluding flights

Highlights

  • Trek into the wilderness through deep valleys, remote gorges and ancient glaciers, eyes open for condors and guanacos

  • Burst through the cloud line and tackle the Portillo Argentino high pass, topping out at an altitude of 4380m

  • Melt away those achy limbs in the Termas del Plomo natural hot spring and celebrate with a vino tinto in Chile's wine region

Itinerary

  1. Day 1

    Welcome to Argentina

    Hotel
    Twin share
    Show Day 1 detail

    Pick up from Mendoza Airport and transfer to your hotel in the city. Your guide will meet you in the lobby at 15:00 to check that everyone is ready to go and answer any last-minute burning questions. Probably a good idea to resist the Malbec tonight – your expedition begins in the morning.

    Day 2

    Trek to Cajón de Arenales

    Hiking
    6 hrs · 9mi · 3133ft up
    Wild camping
    Twin tent
    All meals included
    Show Day 2 detail

    After breakfast your guide will meet you and your crew at the hotel, ready for the short drive to Manzano Histórico. Your acclimatisation trek starts here! You’ll head up into the foothills of the Andes and on to Refugio Portinari where you'll be assisted in completing some customs formalities with the Argentine authorities before heading off into the mountains. From here you'll continue to your first camping spot at Cajón de Arenales. Tents are provided but you may decide to deck out under the stars.

    Day 3

    Trek to Scaravelli

    Hiking
    5 hrs · 5mi · 1952ft up
    Wild camping
    Twin tent
    All meals included
    Show Day 3 detail

    Today you'll continue to gain elevation, following the Arenales River and trekking through the cloud line. The mountain pass between Mendoza province and Santiago de Chile is the same route that the liberation 'Army of the Andes' took in 1817, led by Generals San Martin and O'Higgins. The mountain battle eventually led to Chile winning its independence from Spanish rule. You'll spend the night at Scaravelli Refuge, an incredible spot to refuel the batteries.

    Day 4

    Climb the Portillo Argentino Pass

    Hiking
    9 hrs · 10mi · 3675ft up · 4954ft down
    Wild camping
    Twin tent
    All meals included
    Show Day 4 detail

    A tough day today as you venture further into the heart of the Andes range and climb the 'Portillo Argentino' high pass, rising to a peak altitude of 4380m before a long walk down to the Real de la Cruz refuge. Charles Darwin used the Piuquenes Pass (in reverse from Chile to Argentina) as part of his travels in 1835, which he wrote about in his book 'The Voyage of the Beagle'.

    Day 5

    Acclimatisation day

    Wild camping
    Twin tent
    All meals included
    Show Day 5 detail

    Today is a designated rest and acclimatisation day to recuperate from yesterday and prepare for the next long hike tomorrow. Breathe in the fresh mountain air and enjoy the view, tomorrow is a toughy. There is also the option for a short walk (no elevation gains/losses) to the nearby Laguna de los Patos.

    Day 6

    Trek to El Caletón

    Hiking
    6 hrs · 8mi · 515ft up
    Wild camping
    Twin tent
    All meals included
    Show Day 6 detail

    Today you'll move westwards again and cross the Tunuyán River, enjoying views of the nearby Mount Tupungato (6800m). The trail then follows the Palomares River upstream until the last campsite in Argentinean territory, El Caletón.

    Day 7

    Cross the Chilean border

    Hiking
    8 hrs · 9mi · 3291ft up · 3379ft down
    Cabin
    Twin share
    All meals included
    Show Day 7 detail

    Today is another big day, and the last push before arriving on the other side of the Andes. You'll reach the 'Paso Piuquenes' boundary mark indicating the border between Argentina and Chile. After lunch the support muleteers and mules will change shifts and hand over their duties to a Chilean crew for the remainder of the trek. The final leg of the expedition involves a long descent ending at Termas del Plomo, a natural hot spring perfect for a well-earned dip. After crossing El Plomo River, a van will be waiting to drive you to Cajón del Maipo. You'll stop in the small town of San Gabriel for some more customs bits and end up in your accommodation for the night, a rural hotel and a slap up farewell dinner.

  2. Day 8

    Transfer to Santiago de Chile

    Driving
    2hrs
    Breakfast included
    Show Day 8 detail

    All good things must come to an end, as you bid farewell to the Andean mountain range which you've called home for the last week. This morning you'll transfer by road from Cajón del Maipo to Chile's capital city, Santiago de Chile (an approximately two-hour drive). Drop-offs can be made either at the airport or at a centrally located hotel, if you are staying on in Chile.

Getting There

Fly into
El Plumerillo Airport (MDZ)
Fly out of
Comodoro Arturo Merino Benítez International Airport (SCL)
Pick up
Mendoza Airport (MDZ), Argentina
Any time on Day 1
Drop off
Santiago de Chile Airport (SCL) or a central city location, Chile
Late morning on Day 8

Detailed Logistics

Transfers

Your host will meet you on arrival at Mendoza Airport and transfer you to your hotel accommodation for the night. There are no planned activities on this first day, however, you'll be able to meet your guide at the accommodation around 15:00.

On Day 8, there is a road transfer from Cajon del Maipo onwards to Santiago de Chile (which takes approximately two hours). You can choose whether to be dropped off at Santiago Airport, or at a central location/hotel in the city.

If you choose to arrive early, your host can book extra pre-trip nights for you in a hotel in Mendoza, should you wish – see Optional Extras for prices.

Travel options

This trip starts in Argentina and ends in Chile.

There are international flights to Mendoza from various major hubs in Europe, with connections in either Santiago de Chile (SCL), Sao Paulo (GRU) or Buenos Aires (EZE). Some airlines offer multi-destination round trips.

There are regular flights from Santiago de Chile to Mendoza and international bus services connecting Santiago de Chile with Mendoza should you wish to return to Argentina at the end of the trip.

Once in Santiago de Chile, you are in the ideal spot to extend your adventure. Connect to either southern Chile (Pucón and Puerto Varas are the outdoor adventure hub towns in the south), Patagonia (Puerto Natales is the basecamp for heading to Torres del Paine National Park) or up to San Pedro de Atacama in the far north of the country.

What is and isn't Included?

What's included

  • Guided acclimitisation hike from Manzano Histórico to Cajón de Arenales
  • Guided hike from Cajón de Arenales to Scaravelli
  • Guided hike across the high pass of Portillo Argentino (4380m)
  • Acclimatisation day at the Real de la Cruz refuge, with optional hike to Laguna de los Patos
  • Guided hike across the Tunuyán River to El Caletón
  • Guided hike across the historic Piuquenes Pass into Chile
  • Dip in the natural hot springs of Termas del Plomo

  • Expert, local, English-speaking guides

  • 1 night in a city hotel in Mendoza
  • 5 nights wild camping in the High Andes
  • 1 in a tranquil rural cabin in the Cajon del Maipo region

  • 7 fresh breakfasts
  • 6 packed lunches of empanadas or sandwiches
  • 6 hot, filling dinners that will be cooked up for you by your crew

  • Arrival transfer from Mendoza Airport (Argentina) at any time on Day 1
  • Group departure transfer to Santiago Airport (Chile) on Day 8
  • All transfers during the trip

  • Up to 10kg of personal luggage will be carried during the trek by working mules

  • Tents, cooking and safety equipment

Where You'll Stay

Looking for a private room? See Optional Extras for details and pricing.

  • Mendoza, Argentina, Getty

    Mendoza

    Stay

    Mendoza

    For the first night of the tour you'll stay in a comfortable hotel in the city, such as Hotel Agua del Corral, or similar. Rooms are twin-share and with en suite bathrooms.

  • Campsite, Andes-Vertical

    Camping

    Stay

    Camping

    You'll spend five nights camping during the trek, sleeping in good-quality twin-share expedition tents. The tents are provided and transported for you (outside of your personal luggage allowance), although you will need to bring your own sleeping bag and sleeping mat. The support team will also carry an additional dining tent for common use.

  • Nogalia Cabins, Cajon del Maipo, ANdes Trek, Chile, From Hotel

    Cabins

    Stay

    Cabins

    On the last night of the tour, after arrival in Chile, you'll spend one night in a wooden cabin (twin-share rooms) at a rural hotel in the Cajon del Maipo region.

Optional Extras

Others

Extra 10kg Luggage Porterage
…/per person

Pre/Post Trip Accommodation

Single/Double/Twin Room in Mendoza
…/per night

Upgrades

Private Room and Tent Upgrade
…/per person

For solo travellers looking for their own space, an optional private room and tent can be booked for an extra charge, see Optional Extras for the price. Please request this at the time of booking (this is subject to availability).


To request any extras, message your host via your Much Better Adventures account once you have booked your trip.

All extras must be paid before your trip starts.

Ratings & Reviews

4.03 reviews
  • 5 stars (0)
  • 3 stars (0)
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  • 1 star (0)

Latest Reviews

  • Dan H.

    First the good and the great, some highlights include: •The untouched nature and the fact that you will get it almost to your self. It’s the most remote adventure I’ve been on. •The wonderful guides whose energy seamed to be never ending. •Getting really up and close with guacho culture. •The food. The could be better: Although the guides where absolutely great I felt at times like they where part of an organisational structure that could have worked better. For example; the chosen partner for renting gear in Mendoza is not reliable. Furthermore my clear communications about having my own tent had not been forwarded from the office to the guides. Now the guides solved these situations beautifully but they needed not to have arisen at all. It should also be noted that the iternerary was somewhat changed for reasons not related to weather or safety. I did not mind really but I think it’s good to know for future adventures. My suggestions for those who is thinking of booking this trek are: Do it! You won’t regret it; it’s a once in a lifetime experience. Just make sure to bring as much own gear as possible and if you rent or make special arrangements; check and double check them before leaving Mendoza.

  • Joanne D.

    The trek across the Andes was full of incredible views, local culture and lots of laughs with the group. This was a very rewarding trip with excellent guides and assistance throughout. While booking was easy and the guides themselves were great, there were some organisational issues around equipment and timing so we didn't make it to the hot springs but had a lovely final meal together in Chile.

  • Ivana

    The best thing about this trip, besides the stunning mountain views and incredible night sky, are the local guides and Argentinian food. The guides were thoughtful, patient, answered 100 questions a day with a smile, and sensed what we needed before we knew we needed it. The group dynamic was great, but the guides made it even more fun. Also, the food was epic. Don't expect to lose any weight on this trek!

Customer Photos

4.03 reviews
  • 5 stars (0)
  • 4 stars (3)
  • 3 stars (0)
  • 2 stars (0)
  • 1 star (0)
Showing all 3 reviews
  • A delightfuly desolate trek

    Dan H. March 2025
    First the good and the great, some highlights include: •The untouched nature and the fact that you will get it almost to your self. It’s the most remote adventure I’ve been on. •The wonderful guides whose energy seamed to be never ending. •Getting really up and close with guacho culture. •The food. The could be better: Although the guides where absolutely great I felt at times like they where part of an organisational structure that could have worked better. For example; the chosen partner for renting gear in Mendoza is not reliable. Furthermore my clear communications about having my own tent had not been forwarded from the office to the guides. Now the guides solved these situations beautifully but they needed not to have arisen at all. It should also be noted that the iternerary was somewhat changed for reasons not related to weather or safety. I did not mind really but I think it’s good to know for future adventures. My suggestions for those who is thinking of booking this trek are: Do it! You won’t regret it; it’s a once in a lifetime experience. Just make sure to bring as much own gear as possible and if you rent or make special arrangements; check and double check them before leaving Mendoza.
  • Amazing Andes

    Joanne D. March 2025
    The trek across the Andes was full of incredible views, local culture and lots of laughs with the group. This was a very rewarding trip with excellent guides and assistance throughout. While booking was easy and the guides themselves were great, there were some organisational issues around equipment and timing so we didn't make it to the hot springs but had a lovely final meal together in Chile.
  • The best thing about this

    Ivana December 2023
    The best thing about this trip, besides the stunning mountain views and incredible night sky, are the local guides and Argentinian food. The guides were thoughtful, patient, answered 100 questions a day with a smile, and sensed what we needed before we knew we needed it. The group dynamic was great, but the guides made it even more fun. Also, the food was epic. Don't expect to lose any weight on this trek!

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What to Pack

Backpack with hiking gear laid out

Know before you go! Some stuff we'll provide, other things you'll need to bring.

Kit List

What's included?
  • Tents (The North Face) with solar panels and lights
  • Chairs and tables
  • Communal tent
  • Satellite communication
  • Food and cooking equipment
  • First aid kit
  • 24-hour emergency contact with your host's HQ in Mendoza
What's available to hire?
  • It's not possible to hire any equipment directly from your host. However, they do recommend a local shop in Mendoza with kit available for hire (sleeping bags and mats), called El Refugio (opens in new tab). If intending to rent, kit make sure you double check availability before you arrive and factor in sufficient time to visit the shop upon arrival. Note: if you do not intend on returning to Mendoza at the end of the trip (as the trip ends in Chile) then you can still rent items and the guide will return them on your behalf.
What do I need to bring?

BAGS

  • Soft bag (e.g. backpack or kitbag) which mules will carry
  • Comfortable daypack for trekking with
  • Waterproof liner/drybags

CLOTHES

Essential

  • Down jacket with hood x1
  • Waterproof & windproof Gore-Tex jacket with hood x1
  • Fleece jacket x1
  • Long sleeve undershirt x1
  • Thermal base layers x1
  • Warm gloves
  • Warm hat
  • Sunhat
  • Trekking trousers x1
  • Hiking boots (worn in, Gore-Tex recommended)
  • Assorted thickness socks
  • Underwear
  • 100% UV protection sunglasses (glacier glasses with side shields)
  • Crocs or similar footwear for river crossings
  • Sleeping clothes

Optional

  • Breathable wicking layers as needed
  • Buff or neckscarf
  • Swimming costume for hot springs

SLEEPING

  • Sleeping bag (to -15 degrees Celcius, 4-season)
  • Sleeping mat (Thermarest or similar)

OTHER

Essential

  • Head torch (with spare batteries)
  • Suncream and lip protection (high SPF)
  • Skin moisturiser
  • Reusable water bottles (2x 1-litre)
  • Spare plastic bottle
  • Passport
  • Travel insurance documents
  • Universal travel plug adapter
  • Personal items (biodegradable toiletries, medicines, sanitary wear etc)
  • Toilet kit (toilet paper, biodegradable bags to carry paper out to dispose of)
  • Quick-dry towel
  • Alcohol hand-gel
  • Insect repellent
  • Spending money

Optional

  • Sleeping bag liner
  • Power bank or solar charger
  • Personal first-aid kit (inc. blister treatment)
  • Energy bars and snacks - read our article on Best Hiking Snacks (opens in new tab)
  • Water purification tablets/treatment system
  • Eye drops if sensitive or allergic to dust
  • Camera

FAQs

This trip visits locations that can be considered remote, where the travel time to the nearest medical facility is likely to be over 12 hours, even with outside assistance. Outside communications in some locations may be limited. An evacuation may require a change of route from the originally planned one and the use of a support vehicle, either privately owned or public transportation by land, air, or water, to reach a point of medical care. Additional consideration should be given by and to those with pre-existing medical conditions with specific care needs and should be raised with your host before the trip. Those with pre-existing medical conditions should also seek guidance from a health professional prior to traveling. Should you experience health issues during your trip, you should inform your guide immediately so the proper care can be provided. All travelers should have suitable and adequate travel insurance in place to provide coverage for potential additional costs.

Like crossing any other international border, you will have to pass through immigration and customs in both countries. The difference here is that the neighbouring border offices are located on either side of a huge mountain range!

You'll complete the Argentine formalities on Day 2 - shortly after beginning the trek you’ll arrive to a place called Refugio Portinari, a gateway point to the Andes crossing trails where a small border outpost guarded by the 'National Gendarmerie' border force is located. It is here that you’ll pass through the Argentine customs and passport control. Your trekking guide team will of course be on hand to assist with any help or translation needed.

You’ll step foot on Chilean soil for the first time on Day 7, crossing the border line dividing the country's territories. After finishing the trek there is a short vehicle transfer to the nearest Chilean immigration office (run by ‘Los Carabineros de Chile’) which is a roadside office in the small town of San Gabriel. Here your passport will be checked again, stamped for entry into Chile, and you'll be on your way.

Tips for the guiding team are not included in the trip cost. These are entirely at your discretion but there is an expectation to tip for good service. Your guide will help with advice, however we suggest the below as a guideline per person:

  • $5-10 (USD) per day, per guide (or equivalent in Argentine pesos)
  • $3-5 (USD) per day for 'muleteer' porters

Of course, you are free to tip more or less, and the amount should be reflective of your perception of service and quality – a tip is not compulsory and should only be given when you receive excellent service.

During the trek, safe drinking water can be sourced directly from mountain streams and rivers. The guiding team will have water purification options should you wish to use them.

If bringing your own filter bottle, then check out our guide to the best water filters.

As this is a linear trek, you won't be returning to Mendoza as part of the trip, so should factor this into your packing. We recommend packing lightly without too many unnecessary items. If you plan to return independently to Mendoza after the trip then you can use the option of leaving excess luggage with the host for collection later on. For this service, they charge USD $20 per person, payable locally in cash.

Yes. Our host works only with well-respected local mule handlers known as 'arrieros' who care for the mules throughout the journey. The welfare of the animals is paramount and taken very seriously by the handlers who make a living working with expedition groups. Pack mules are traditionally used in this part of the world for transporting goods slowly over mountainous terrain, using their robust strength and balance. A weight limit of 60kg per mule is strictly observed, which is well below the weight that mules are typically comfortable carrying.

Sure can! Over 70% of our travellers travel solo, it’s a great way to meet like-minded people.

Our team of Adventure Hunters co-create exclusive adventures which are run by highly vetted, specialist hosts. The trip is run by our trusted host partner in the destination. We only work with independent, local, in-destination experts who know the very best places to explore and how to stay safe. Read more information about the local teams we partner with. You’ll be introduced to the host straight after making a booking via the Much Better Adventures platform.

Much Better Adventures refer to the UK Government’s official travel advice when designing trips and monitoring trip operations. We recommend that all customers review the practical information available on the UK Government’s FCDO website, where you can find up-to-date advice by searching for your destination(s).

If you are based in the United States, you can also check the latest travel advisories from the U.S. Department of State.

For customers joining from other international locations, we recommend checking the official travel advice issued by your country of residence, as guidance may vary.

We recommend checking out the country-specific information and also talking to a travel nurse.

We automatically convert prices from the local currency that a host receives to your chosen currency. We update our exchange rates daily, so prices displayed on the site are subject to currency fluctuations, which is why you may see them change over time.

If you wish to change the currency you pay in, head to the bottom of the page.

All of our group adventures are specially designed for adults to enjoy as we want these adventures to bring together outdoorsy people who are truly like-minded. You must be over 18 to join one of our trips.

You're always in good company on one of our adventures.

Our trips typically consist of a mix of solo travelers and small groups of 2 or 3 friends, with most in their 30s-50s.

Our sociable adventures are solo-friendly by design and naturally attract outdoorsy people with a shared mindset; a love for adventure, a desire to push themselves, and meet awesome, like-minded people along the way.

It’s this camaraderie that has so often turned a great adventure into a life-changing one.

Don't just take our word for it:

  • 95% of people rate the group dynamics on our trips 5/5
  • 90% of people recommend joining a trip to make new friends
  • 75% of people have met people on our trips that they would now consider friends

See here for more info about the Much Better Adventures tribe.

Departures are scheduled throughout the summer season only (Nov-Mar). Typical summer weather conditions in this part of the central Andes of Argentina are dry, clear and warm during the daytime, with the temperature dropping significantly at night. During the trek, whilst at high altitudes, you can typically expect daytime temperatures to reach approx. 25 ºC but at night it can be as low as -2 ºC. There are two high passes during the crossing (Portillo Pass and Piuquenes Pass) where wind conditions can be a factor, and earlier in the season there can still be a snow covering. Your guides monitor the conditions via specialist websites in order to stay prepared and share information.

We partner with the World Land Trust to ensure this trip achieves Net-Zero emissions. We also support their Buy an Acre program, helping local communities to buy and protect natural habitats in perpetuity.

What's the number?
It works out on average at 215kg of CO2 emissions per person, including all local transport, accommodation, food, activities, guides, staff and office operations.

The only thing it doesn’t include right now is flights and travel to the destination. We do make an overall estimate across all our customers separately, but as we don’t book flights, have customers from all corners of the world, and no way of reliably knowing their travel plans, we simply can’t include an individual number in the figure on display here. We’ve got a goal to fix that, so that when you book, there is a way to measure and mitigate the carbon emitted by your flight too.

But what does the number mean?
Yep, hard to picture eh? To give you an idea:

  • Driving 1000 miles/1609km would be approximately 281kg of CO2 in an average car (or 140.5kg per person, if there were two of you in it).
  • A return economy class flight between London and New York would be approximately 1619kg (1.66 tonnes) per person.
  • 10 trees in a temperate forest are estimated to remove approximately 250kg of CO2 from the air in a period of 5-10 years.

What are we doing about it?
Our trips are relatively low-carbon by design, and we're working with all our hosts to develop long term carbon reduction plans. We partner with the World Land Trust to ensure this trip achieves Net-Zero emissions. We also support their Buy an Acre programme, helping local communities to buy and protect natural habitats in perpetuity, ensuring the protection of the reserve and its wildlife.

Want to know more?
Amazingly, no international travel company has ever publicly published their carbon measurements before, as far as we know. We believe that must change, quickly. So we’re openly sharing the method we used in the hope that other companies will be able to more easily follow suit and build on what we've done so far. You'll find it all here.

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