Cajón de Arenales Hike in Uco Valley
Walk along crystal-clear rivers and towering granite walls — with transportation from Mendoza or Uco valley included.
PRICE
From 165 USD
SEASON
All Year
DURATION
10 hours
EFFORT
Medium
A full day among glacier streams and towering granite walls
In the heart of the Central Andes, just outside Uco Valley, Cajón de los Arenales offers one of the most breathtaking hikes in the region. This experience invites you to explore a remote and majestic landscape — no camping or previous mountain experience required.
From the very beginning, the scenery is striking: massive granite walls, a crystal-clear river flowing through the canyon, and the deep silence of the high mountains. You’ll hike for about 3 hours through rocky trails and wild valleys, surrounded by raw nature, until reaching a hidden glacial lagoon— where time seems to stand still.
This is a moderate-level hike, ideal for those seeking a physical challenge with a strong connection to nature.
We’ll pick you up in Mendoza or Uco Valley, you’ll walk with a light pack, enjoy a homemade lunch with unforgettable views, and share the day with a certified mountain guide who’s with you every step of the way.
An authentic, off-the-beaten-path adventure — perfect to discover one of the Andes’ best-kept secrets on foot.
HIGHLIGHTS
A full-day hike through one of the Andes’ hidden treasures
Cajón de Arenales is a remote valley tucked away in the Central Andes, known for its massive granite walls and crystal-clear rivers.
This unforgettable hike takes you through rugged terrain, along icy streams and wild mountain landscapes, until you reach a glacial lagoon — a magical spot where time seems to stand still.
Effort rewarded: after about 3 hours of hiking, you’ll sit down to a well-earned homemade lunch with a view.
Please note: the lagoon only forms during summer months, thanks to seasonal meltwater.
WHY DESTINO MONTAÑA
We’re a team of professional mountain guides with over 10 years of experience exploring the Andes and sharing their magic.
Our training, local knowledge, and commitment allow us to offer a safe, well-organized, and truly personal experience — so you can enjoy every moment with confidence.
We’re passionate about hiking and love to guide others through this stunning landscape at a human pace, with warmth, care, and attention to detail.
This is not a rushed tour. It’s a day to connect, breathe, and truly experience the Andes — guided by people who live and love this land.
OUR RECOMMENDATION
his full-day hike is perfect if you’re looking to explore wild, scenic landscapes far from the crowds. You’ll walk through a remote valley in the Central Andes, surrounded by towering granite walls, and glacier-fed rivers.
No previous mountain experience is needed, but good physical condition is essential — especially if you’re used to hiking regularly. The trek lasts around 5 hours (round trip), with uneven terrain and some uphill sections.
The most challenging part comes near the end: you’ll cross a rocky field without a marked trail, climbing over large boulders that demand focus and physical effort to reach the lagoon.
If you’re looking for a real adventure and a deep connection with the mountains, this hike is for you.
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Professional hiking guide, experienced and friendly
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Round-trip transportation from Mendoza city (within 15 km radius) or from Uco Valley
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Small groups, for a personalized experience
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Trail snacks: cereal bar, fruit, and water
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Full mountain lunch, adapted to the day’s activity level
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Trekking poles available, upon request and subject to availability
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Staff trained in first aid, for extra peace of mind
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Personal accident insurance
NOT INCLUDED
- Personal gear (warm layers, sun protection, etc.)
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Pick-ups outside the 15 km radius from downtown Mendoza
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Any other service not explicitly mentioned
08:00 a.m. – We pick you up from your accommodation in Mendoza city. The journey begins towards Cajón de los Arenales, in the central Andes.
09:30 a.m. – If you’re staying in Uco Valley, we’ll pick you up directly from your accommodation.
11:30 a.m. – Start of the hike. We walk through granite walls and wild valleys, following a crystal-clear mountain stream.
02:15 p.m. – Arrival at the glacial lagoon. Time to rest and enjoy a mountain lunch with a breathtaking view.
03:30 p.m. – Begin the return hike, crossing the final rocky section back through the gorge.
04:30 p.m. – End of the hike. We drive back to your accommodation.
06:30 p.m. – Arrival in Mendoza city or Uco Valley, feeling recharged and fulfilled by the mountains.
Note: Times may vary slightly depending on weather, group pace, or road conditions. We always prioritize enjoying the journey without rushing.
What fitness level is required?
The difficulty is moderate. While the hike doesn’t involve technical skills, we’ll walk several kilometers at altitude and cross some loose rock sections. To enjoy it comfortably, it’s important to be in good physical shape and exercise regularly.
How far will we hike, how much will we ascend, and what’s the maximum altitude?
The hike covers a total of 9 km (5.6 miles) round-trip, with a 450-meter (1,476 feet) elevation gain.
We start the trek at 2,700 meters (8,858 feet) and reach a maximum altitude of 3,150 meters (10,335 feet) at the glacial lagoon where the trail ends.
What food is included?
During the hike, we provide a cereal bar and two pieces of fruit. Once we reach the lagoon, we enjoy a picnic-style lunch with cheese, salami, homemade bread, hard-boiled egg, fried potatoes, tomato, hummus, and more.
Can you provide vegetarian or adapted meals?
Of course! Just let us know when you book the tour.
What clothing and gear should I bring?
We recommend long pants, warm layers, windbreaker, cap, sunglasses, and hiking or trail shoes. Also bring sunscreen, bottled water, and your ID or passport (required).
You can download our full gear checklist here.
Where do you pick up travelers?
We offer pick-up in Mendoza city center (within a 15 km radius) and also in the Uco Valley.
If you’re staying further away, we can arrange transportation for an additional fee.
If you’re in Luján de Cuyo, please contact us before adding this option, as some areas are included and others not.
How many people are on the hike?
We keep our groups very small. Most tours are private, but you may share with up to 2 other travelers.
Will we cross any rivers?
Yes. At one point we cross a river with no bridge. It’s easy to cross, but your shoes may get a little wet. You can bring an extra pair of socks or shoes if you’d like.
What’s the typical temperature like?
It depends on the season. In winter, temperatures can drop to –10°C (14°F) with possible snow. In summer, early morning temperatures can still be near 0°C (32°F). Bring warm layers, but also some light clothing for sunny conditions.
Can the itinerary change?
Yes. The guide may adjust the route based on weather, terrain, or group conditions, always prioritizing safety and overall experience
What happens in case of bad weather?
Mountain weather is unpredictable. Come prepared with proper clothing and a good mindset. We’ll be with you the whole way to ensure a safe and enjoyable day.
How do I book?
If you’re outside Argentina or paying with an international card, you can book securely through the button on this page:
What’s your cancellation policy?
Our cancellation policy is flexible:
– Cancel up to 48 hours in advance: 100% refund
– Cancel between 48 and 24 hours: 50% refund
– Cancel less than 24 hours before the tour: no refunds
IMPORTANT
Small groups, big experiences.
We offer a personalized experience in every tour — that’s why spots are limited and often sell out quickly, especially in high season.
Book now and secure your place in this unforgettable journey.