Trekking in San Pedro de Atacama: The 11 Best Routes

The best treks in San Pedro de Atacama range from 2-hour walks near town to full-day crossings through canyons and the puna. What matters is choosing them according to your acclimatization: start with the low routes and save the high-altitude ones for day 3 onwards. The routes fall into three altitude tiers: low-elevation dry canyons (2,400 to 2,600 m) such as the Death Valley Ridges and Devil's Throat, to loosen your legs on the first two days; pre-cordillera river gorges (3,000 to 3,500 m) such as the Guatín Canyon and the Vilama 20k Traverse, for cardiovascular adaptation with river crossings; and high-altitude altiplano traverses (3,800 to 4,400 m) such as Machuca to Río Grande and the ascent of Cerro Copa Coya, the essential warm-up before going for summits above 5,000 meters.

The most rewarding desert traverses are linear point-to-point routes with no public transport back and that follow rivers whose water is not drinkable because of its high concentration of boron, arsenic and mineral salts. If you don't have two vehicles to coordinate a shuttle, or a private 4x4 transfer, hiring a certified local guide solves navigation in labyrinthine canyons with no cell coverage and guarantees first-aid support and immediate evacuation.

Below we break down the 11 best hiking routes of the Atacama altiplano, their comparative data sheet, a decision tree based on your level, and how to connect these days on foot with the ascent of the great Andean volcanoes.

Comparison Table: The 11 Best Treks in San Pedro de Atacama

All the data in the following table was recorded in the field by our mountain guides, assuming sustained walking paces without long stops:

Field Operating Tips and Guide Warnings

[!WARNING]

1. Water in Atacama: The Mountain Filter Trap

Do not drink water from the altiplano rivers (Vilama, Puritama, San Pedro or Salado), not even with chlorine tablets, ceramic filters or Sawyer / LifeStraw-type membranes. These systems neutralize bacteria and protozoa, but they do not filter out heavy metals, salts or the high concentrations of arsenic and boron of volcanic origin dissolved in the water. Plan a minimum of 1 liter of drinking water every 2 hours of walking in winter and 1.5 liters in summer, reinforced with oral rehydration salts to make up for the imperceptible sweat rate caused by the very low ambient humidity (below 10%). You can estimate your exact demand with our respiratory water loss at altitude calculator.

[!IMPORTANT]

2. The Footwear Mistake: Ruining the Waterproof Membrane

For routes with repeated water crossings such as the Guatín Canyon or the Vilama 20k Traverse, avoid heavy boots with a waterproof Gore-Tex-type lining. The water will come over the boot collar on several steps; once inside, the membrane prevents drainage and turns your footwear into a two-kilo trap per foot that will macerate your skin within a few kilometers. Use trail running shoes with a quick-drying mesh upper and a sole with a high-grip compound on wet rock (Vibram Megagrip or Continental). Reserve mid-cut boots exclusively for dry, scree-covered high-altitude trails such as Cerro Copa Coya.

[!CAUTION]

3. The Linear Route Trap: The Return That Doesn't Exist

Longer trails such as Machuca to Río Grande (14.2 km) or the Guatín to Vilama Traverse (19.5 km) are not loops. Finishing in the village of Río Grande at 4:00 PM after leaving your car in Machuca means being stranded more than 30 km away by road, with no mobile signal, in a hamlet with no taxi service or regular public transport back to San Pedro. These routes require you to arrange a point-to-point 4x4 transfer in advance, or to book the outing with an operator who handles pickup at the end of the canyon.

[!TIP]

4. The Thermal Weather Window

In the Atacama basin the southwest thermal wind picks up almost like clockwork between 1:30 and 2:30 PM, lifting clouds of dust and sharply reducing visibility on the crests and ridges of the Salt Mountain Range. Start any morning walk between 8:00 and 8:30 AM so you can finish the exposed sections in calm air and take advantage of the thermal shade at the bottom of the gorges before the sun reaches its zenith.

The Decision Tree: Which Trek Should You Choose Based on Your Profile?

If you don't know where to start, use this scheme based on your available time, your means of transport and your goal:

                            WHAT IS YOUR MAIN GOAL?
                                          │
       ┌──────────────────────────────────┼──────────────────────────────────┐
       ▼                                  ▼                                  ▼
[BASE ACCLIMATIZATION]            [IMMERSION & ADVENTURE]              [ALTITUDE TRAINING]
 (Days 1-2 / 2,400m)               (Days 2-4 / 3,200m)                 (Days 3-5 / >4,000m)
       │                                  │                                  │
 ┌─────┴─────┐                      ┌─────┴─────┐                      ┌─────┴─────┐
 ▼           ▼                      ▼           ▼                      ▼           ▼
No car?     Car or                 Short route  Full-day               Cultural     Pre-volcano
(On foot/   transfer?              with water?  traverse?              isolation?   test?
 bike)       │                      │           │                      │           │
 │           ▼                      ▼           ▼                      ▼           ▼
 ▼          [DEATH VALLEY          [GUATÍN     [VILAMA RIVER          [MACHUCA TO  [CERRO COPA
[PUKARÁ      RIDGES or              CANYON]     TRAVERSE 20K           RÍO GRANDE]  COYA 4,400m]
 DE QUITOR]  GYPSUM CANYON]                     or CHUSCHUL]

1. "I only have half a day and no vehicle"

• Option A (Panoramic): Climb the Pukará de Quitor and Mirador de la Cruz. It's 3 km that you can start by bike or on a 25-minute walk from San Pedro's plaza. It offers a head-on view of the perfect cone of Licancabur Volcano.
• Option B (Geology and Canyon): Rent a gravel or mountain bike and ride the flat 8 km of the Devil's Throat in Catarpe, a narrow gash with clay walls and gypsum veins and no demanding elevation gain.

2. "I'm traveling with children, older adults, or want a low-effort walk"

• The best option: the Jere Canyon (Toconao): 4 km round trip, 1.5 to 2 hours and only 60 m of elevation gain, at 2,500 m. It's 38 km south of San Pedro on a paved road.
• Why it's ideal for families: the trail runs through an oasis with a permanent stream, quince and fig orchards, willows and petroglyphs on the rock. There are no steep slopes or exposed sections, and under the trees it is 5 °C to 8 °C cooler than on the salt flat.
• Recommendation: SPF 50+ sunscreen, long-sleeved clothing and a hat for the children, and water with electrolytes every 30 minutes: in the very dry desert air they dehydrate faster. If you plan to climb a volcano with teenage kids, see our guide to climbing volcanoes with kids and teenagers.

3. "I'm looking for unique landscapes with water, vegetation and thermal contrast"

• The Classic Route: The Guatín Canyon (Cardones to Puritama) (8 km). It goes up the canyon where the hot waters of the Puritama River meet the icy waters of the Purifica, flanked by centuries-old candelabra cacti over 6 meters tall.

4. "I want solitary canyons, geological labyrinths and zero crowds"

• In the Salt Mountain Range: The Salt Mountain Range: Gypsum Canyon trail (5.5 km), with dry down-scrambles over pure halite.
• In the Domeyko Range: The Chuschul Gorge and Rainbow Valley (9.2 km), a loop through sedimentary faults where green tuffs, ochre clays and white volcanic ash coexist with no tourists.

5. "I want a demanding full-day traverse with radical isolation"

• River Traverse: The Vilama River Traverse (Guatín to Vilama 20k), 19.5 km descending the entire boxed-in canyon down to Catarpe, crossing the river more than 30 times with no coverage and no intermediate escape routes.
• Cultural Traverse: Machuca to Río Grande (Shepherds' Route), 14.2 km following the ancestral camelid exchange path between the bofedal (high-altitude wetland) at 4,000 m and the farming terraces of Río Grande at 3,200 m.

6. "I'm acclimatizing to climb my first 5,000 m or 6,000 m volcano"

• The Hypoxia Test: The ascent of Cerro Copa Coya (4,400 m), next to the El Tatio Geysers. It demands moving your body over rugged terrain with only 60% of the oxygen pressure available at sea level.

In-Depth Analysis of the Key Routes

1. Guatín Canyon: From Cardones to Puritama

• Distance: 8 km linear (ascent) | Elevation gain: +320 m | Altitude: 3,200 – 3,520 m
• Full Guide: Guatín Canyon Trek

It is the quintessential acclimatization walk for your second day at the destination. Unlike the mass-market agencies that stop for 30 minutes at the roadside to photograph a cactus, the technical route enters the deep canyon where the volcanic walls narrow to less than 5 meters.

[B-245 Road Junction (3,200m)] ──> [Narrow Canyon / River Crossings] ──> [Purifica + Puritama Confluence] ──> [Puritama Hot Springs Access (3,520m)]

The trail requires negotiating polished rock blocks, crossing the stream between 6 and 10 times and making your way over small warm waterfalls. Ending the walk in the lower sector of the Puritama Hot Springs lets you link the muscular effort with a hydrothermal recovery session. Remember that entry to the springs requires an online reservation made weeks in advance.

2. Machuca to Río Grande: The Ancestral Shepherds' Route

• Distance: 14.2 km linear (descent) | Elevation gain: +50 m / -880 m | Altitude: 4,000 – 3,200 m
• Full Guide: Machuca to Río Grande Trek

A historic traverse used for centuries by Lickanantay communities to move llamas and sheep seasonally from the humid high-altitude pastures to the temperate orchards of the lower basin.

It starts in the Machuca bofedal at 4,000 meters above sea level, where sightings of vicuñas, flamingos and yellow-billed pintails are common. The trail winds through a canyon of volcanic ignimbrite in violet and golden tones that gradually narrows. Along the way you see dry-stone pastoral shelters (estancias) and pre-Hispanic agricultural terraces. Trekking poles with lever locks are indispensable to cushion the knee impact of almost 900 meters of continuous descent.

3. Vilama River Traverse (Guatín to Vilama 20k)

• Distance: 19.5 km linear | Elevation gain: +40 m / -750 m | Altitude: 3,200 – 2,450 m
• Full Guide: Guatín to Vilama 20k Traverse Trek

The most demanding and isolated mid-elevation hiking traverse in San Pedro de Atacama. While the conventional Guatín trek heads up toward Puritama, this expedition branches off at the confluence and follows the Vilama River downstream to the south.

It crosses blind gorges where the rock walls exceed 60 meters in height, blocking the GPS signal for kilometers. The water is often waist-deep in boxed-in fords and forces you to wade the torrent more than 30 times. There are no marked trails or obvious paths; progress is made over the rocky riverbed. It must be undertaken exclusively with a professional guide equipped with a satellite SOS device and a 4x4 transfer waiting for you at the Vilama/Catarpe mouth.

4. Death Valley Ridges

• Distance: 7.0 km horseshoe | Elevation gain: +120 m / -120 m | Altitude: 2,450 – 2,580 m
• Full Guide: Death Valley Ridges Trek

The best panoramic balcony over the Salt Mountain Range and the Atacama plain. The route follows the upper edge of the sedimentary ridge, offering an aerial perspective straight onto the central dunes of Death Valley and the cordillera amphitheater dominated by Licancabur Volcano (5,916 m) and Juriques Volcano.

The culminating stretch is the descent of the Great Dune: a 120-meter slope of fine sand at a 35° incline that lets you go down in minutes, cushioning every stride. It's a perfect route for the afternoon of the first day, timing the descent before twilight.

5. Cerro Copa Coya (4,400 m)

• Distance: 4.0 km out and back | Elevation gain: +200 m / -200 m | Altitude: 4,200 – 4,400 m
• Full Guide: Cerro Copa Coya Trek

Located immediately east of the geothermal field of the El Tatio Geysers, Cerro Copa Coya is a rhyolitic dome that offers the best bird's-eye view over the more than 80 active fumaroles of the thermal complex.

Despite its short distance (2 km of ascent), the route demands serious cardiovascular effort because of the extreme starting altitude (4,200 m) and the low morning temperatures, which often drop to -10°C in winter. It is the perfect physiological test within the acclimatization itinerary to check how your body responds above the 4,000 m barrier before attempting an Andean five-thousander.

Logistics: Self-Guided Hiking or Outing with a Certified Guide?

San Pedro de Atacama allows you to do certain walks on your own, but it severely punishes a lack of planning on remote routes:

                            LOGISTICS: SELF-GUIDED OR WITH A GUIDE?
                                            │
        ┌───────────────────────────────────┴───────────────────────────────────┐
        ▼                                                                       ▼
 [FEASIBLE SELF-GUIDED ROUTES]                                           [ROUTES WITH MANDATORY GUIDE]
 • Pukará de Quitor (marked trail)                                       • Vilama 20k Traverse (no coverage, blind canyon)
 • Devil's Throat (controlled access)                                    • Machuca to Río Grande (requires 4x4 transfer)
 • Jere Canyon (local park)                                              • Cerro Copa Coya (safety at 4,400m / hypoxia)
 • Death Valley Ridges                                                   • Salt Mountain Range Night Trek

Routes you can do on your own

Trails such as Pukará de Quitor, Devil's Throat or Jere Canyon have access regulated by indigenous communities, an entrance fee paid at a physical ticket office, and marked trails. If you have a bicycle or a basic car, you can do them independently as long as you ensure hydration and sun protection.

Why book a guided service with Vulcano

On complex routes such as Guatín to Vilama, Machuca to Río Grande, Chuschul or Copa Coya, having our local guides turns a logistical risk into a smooth experience:

1. Full point-to-point logistics: Don't worry about leaving your car abandoned. We take you in 4x4 pickup trucks to the start of the trail and our vehicle waits for you at the end of the canyon with isotonic drinks, thermal blankets and energy snacks.
2. Safety and first aid in remote areas: All Vulcano guides hold international WFR (Wilderness First Responder) certification and carry a trauma kit, a pulse oximeter to monitor your arterial oxygen saturation ($SpO_2$) and a Garmin inReach satellite emergency link with global coverage.
3. Reading the terrain and living heritage: We don't just walk: we interpret the geomorphological formations of the Puna, identify tracks of native fauna (pumas, culpeo foxes, guanacos) and pass on the place names and ancestral knowledge of Atacameño culture.

From Trekking to High Mountain: The Andean Progression Pyramid

Hiking days in San Pedro de Atacama are not an end in themselves for the mountaineer: they are the biological foundation for topping the giants of the Andes.

Climbing summits above 5,500 meters without having done active walks above 3,000 m and 4,000 m beforehand multiplies the failure rate from acute mountain sickness (soroche) by four. Our staged acclimatization method structures the trip as a technical pyramid:

                                      ▲
                                     / \
                                    /   \
                                   /  *  \  Ojos del Salado (6,893m)
                                  /       \ [Volcanic Roof of the World]
                                 /─────────\
                                /     *     \ Llullaillaco (6,739m) / San Pedro (6,145m)
                               /             \ [Remote Andean Six-Thousanders]
                              /───────────────\
                             /        *        \ Licancabur (5,916m) / Sairecabur (5,971m)
                            /                   \ [Technical Summits of the High Puna]
                           /─────────────────────\
                          /           *           \ Cerro Toco (5,604m) / Láscar Volcano (5,592m)
                         /                         \ [Your First Andean Five-Thousander]
                        /───────────────────────────\
                       /              *              \ Copa Coya (4,400m) / Machuca to Río Grande (4,000m)
                      /                               \ [High-Altitude Treks and Hypoxia Test]
                     /─────────────────────────────────\
                    /                 *                 \ Guatín (3,200m) / Chuschul (3,200m) / Quitor (2,500m)
                   /                                     \ [Active Acclimatization and Cardiovascular Conditioning]
                  /───────────────────────────────────────\

The Leap to Your First 5,000 m

Once you've completed 3 or 4 days of trekking in mid-elevation gorges, your body will be ready for the summit push on half-day volcanoes:

• Ascent of Láscar Volcano (5,592 m): The most active volcano in northern Chile. You'll walk over pyroclastic deposits to the edge of an active crater 750 meters in diameter and 300 meters deep, emitting permanent fumaroles of sulfurous gases.
• Ascent of Cerro Toco (5,604 m): The most accessible summit above 5,600 meters in the central Andes. A 4x4 approach up to 5,200 meters over a former mining sulfur works and a final push of 2 to 3 hours of walking with panoramic views of the Chajnantor Plain and the ALMA telescopes.

Major Summits and Remote Six-Thousanders

For experienced mountaineers looking for multi-day expeditions and high-altitude camps:

• Ascent of Sairecabur Volcano (5,971 m): Massive andesitic blocks on the border ridge with Bolivia, brushing 6,000 meters.
• Ascent of Licancabur Volcano (5,916 m): The sacred pyramid of the Atacameños, which holds in its crater the fifth-highest lake in the world.
• Ascent of San Pedro Volcano (6,145 m): A giant stratovolcano with a high camp on the saddle between its two craters.
• Ascent of Llullaillaco Volcano (6,739 m): The highest archaeological site on the planet, in the desolate reaches of the Salar de Punta Negra.
• Ojos del Salado Volcano Expedition (6,893 m): The highest active volcano on Earth, the Andean culmination in the Atacama region.

Recommended Technical Gear for Trekking in Atacama

Walking in the driest desert in the world calls for proven equipment to cope with extreme ultraviolet radiation during the day and sudden temperature drops:

If you need to supplement your technical gear on site (telescoping poles, daypacks, sleeping bags for camping or thermal layers), see our guide on where to rent mountain and trekking gear in San Pedro de Atacama.

Digital Tools and Outdoor Calculators to Plan Your Route

Before heading out into the field, use our technical calculators designed specifically for the bioclimatic conditions of the Atacama Puna:

• Ascent Rate and Acclimatization Calculator: Check whether your itinerary meets safe day-by-day elevation gain gradients.
• Walking Time Estimation Calculator (Naismith's Rule): Calculate real walking times by adjusting for horizontal distance and cumulative positive elevation gain.
• Respiratory Water Loss at Altitude Calculator: Determine the rate of metabolic dehydration at low barometric pressure.
• Hiking and Trekking Calorie Calculator: Estimate the calorie expenditure of your day and plan the walking rations you need.
• Interactive Atacama Route Map: See the gorges, road access points and cordillera elevations.

Technical Frequently Asked Questions (FAQ)

Is it mandatory to hire a guide to trek in San Pedro de Atacama?

There is no general regulation requiring a guide for all trails, but there are strict local rules administered by the Atacameño communities (Consejo de Pueblos Atacameños). At sites with control infrastructure (Quitor, Catarpe, Guatín, Machuca, Tatio), entry requires paying community fees at a ticket office. However, for complex, unmarked traverses such as the Vilama 20k Traverse or the Gypsum Canyon, going in alone without satellite navigation or an evacuation plan poses a severe risk of disorientation and heat stroke. Get all the details in our guide, do you need a guide to trek in San Pedro de Atacama? Regulations and safety.

What do I do if I have a medical emergency or get lost in a boxed-in canyon?

At the bottom of the gorges (Guatín, Vilama, Machuca) there is no cell signal from any national or international carrier, and the rock walls can block the line of sight to commercial GPS constellations if the canyon is very narrow. If you have a mishap, do not leave the riverbed or try to climb clay or loose rock walls that could crumble. All Vulcano-guided groups carry an inReach satellite terminal that sends an SOS alert with direct geolocation coordinates to rescue teams and the San Pedro carabineros (Frontier GOPE).

Is trekking recommended with children or older adults?

Yes, as long as you choose the right elevations. Routes such as Devil's Throat (Catarpe), Jere Canyon in Toconao or the lower section of Pukará de Quitor take place at 2,400 m with minimal elevation changes, making them ideal for families. Avoid taking minors or unacclimatized adults onto routes above 3,500 m such as Machuca or Cerro Copa Coya.

What is the best time of year for hiking in Atacama?

You can walk all 12 months of the year, but the best thermal windows are autumn (March to May) and spring (September to November), when daytime temperatures are mild (20°C to 24°C) and the cordillera wind is moderate. During the altiplanic or Bolivian winter (January to February) there are summer rains and electrical storms in the high cordillera that can cause sudden flash floods in gorges such as Guatín and Vilama; always check road and weather reports before heading out. In the austral winter (June to August), days are clear and dry, but nighttime and early-morning temperatures at high elevations easily drop below -10°C.

Keep Planning Your Adventure in San Pedro de Atacama

• Do You Need a Guide for Trekking in San Pedro de Atacama?: Community regulations, self-guided routes and 4x4 logistics.
• 4x4 Transfer to Volcanoes and Base Camps: Drop-off and rescue service for independent mountaineers.
• Where to Rent Mountain Gear and 4x4s in San Pedro: 4-season tents, -20°C sleeping bags, ice axes and equipped pickup trucks.
• Altitude Sickness Guide for San Pedro de Atacama: Prevention, soroche symptoms and physiological adaptation times.
• Acclimatization Itinerary in San Pedro de Atacama: Day-by-day strategy from the base basin to summits above 5,000 m.