Upon arriving in San Pedro de Atacama, Chile we weren’t quite sure what to expect. We had heard about the stunning landscapes and researched activities online. However, we were surprised to learn we could hike to around 5,600 meters / 18,372 feet. Now, the only decision was whether to tackle Cerro Toco or Lascar.
Having spent nearly a month at elevations above 3,000 meters / 9,843 feet in Bolivia and Peru, we felt confident about our bodies’ ability to handle high altitudes. But, everyone reacts differently, and even those with above-average fitness shouldn’t underestimate the effects of altitude.
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How to Hike at High Altitudes
To prepare for a high-altitude hike, be sure to drink plenty of water the night before. Avoid alcoholic beverages and red meat, as they can lead to dehydration and slow digestion at high altitudes. Staying hydrated during the hike is crucial; drink regularly to prevent headaches after your descent.
It’s best to carry water in a bottle or flask instead of a bladder, as the tube will freeze almost instantly at this elevation (a lesson we learned the hard way!). Additionally, consider bringing electrolyte tablets to mix with your water for added hydration. Snacking on light, high-energy foods like nuts and energy bars can also help sustain your energy levels as you climb. Lastly, don’t forget to listen to your body—take breaks as needed and be mindful of any symptoms of altitude sickness.
Choosing between Cerro Toco and Lascar
Let’s get to the heart of the matter! Why did we choose to hike Cerro Toco? Quite simple. Initially, we planned to tackle Lascar, but since it wasn’t available on our chosen day, we opted for Cerro Toco instead.
When deciding between the two, consider the following:
- Cerro Toco (5,604m / 18,385 feet) is closer to San Pedro de Atacama and offers a shorter hike compared to Lascar (5,592m / 18,346 feet).
- Cerro Toco is an inactive volcano, while Lascar is one of the most active in northern Chile.
- Hiking Cerro Toco is also more budget-friendly.
- Both volcanoes experience frigid temperatures, typically ranging between -30° and -20° Celsius, so be prepared for the cold. If you opt for a guided hike, the agency usually provides additional gear and warm clothing, which is essential!
- Lascar’s crater continuously releases gases, serving as a reminder of its potential danger. Its last major eruption was in 1993, sending ash as far as Buenos Aires. In December 2022, it rumbled to life, emitting a significant cloud of smoke, though no eruption or damage occurred.
- Cerro Toco is a great introduction to high-altitude hiking if this is your first time attempting it. It also offers stunning views of Licancabur volcano, just on the border with Bolivia.
Hiking Cerro Toco & Map
We booked the tour with Nortrek, which, after comparing multiple companies, is by far the cheapest and best in San Pedro de Atacama. I advise booking a couple of days in advance, as the treks depend highly on weather conditions and availability.
On the day of the hike, we were picked up very early in the morning by our two guides. We drove to approx. 4,900m / 16,076 feet, where we parked the car and layered up with more clothing.
To say it was cold would be an understatement. It was only when we started hiking, that I could feel my fingertips again. Although I had initially thought that we were moving at snail pace, I soon realized that it was absolutely necessary. It is very important to breath at a regular pace and not rush uphill. Generally, the hike was easy, with the only difficulty being the lack of oxygen. We reached the top in around 1.5h and we were able to soak in the beautiful views from the top.
According to many people we talked to, the views from Cerro Toco are less impressive than on Lascar. But, I can assure you that our views were not bad either. Cerro Toco faces the border with Bolivia, which we had just crossed a couple of days before. Not only could we admire the majestic Licancabur (5,916m / 19,409 ft), but we were also able to glimpse at part of the Green Lagoon.
You can also plan the trip on your own, provided you have a car. However, you need to know the limits of your body and be prepared for the weather conditions. In September, when we went, there was no snow on the path to the top. This of course could be different, depending on the time of year you plan your trip for.
