The Tren a las Nubes, or Train to the Clouds, is a rail journey unlike any other. Taking travelers to a dizzying altitude of 4,220 meters (13,850 feet) above sea level, it’s one of the highest train rides in the world. This adventure combines breathtaking Andean landscapes, rich cultural encounters, and a chance to experience a true engineering marvel.
For those seeking a once-in-a-lifetime adventure, the Tren a las Nubes is an unmissable highlight, and it fits beautifully within our Buenos Aires to Lima: High Andes & Machu Picchu tour.
The Tren a las Nubes operates on the most dramatic stretch of its historic railway, running from San Antonio de los Cobres to the iconic Polvorilla Viaduct.
The journey begins in San Antonio de los Cobres, a high-altitude town surrounded by rugged mountains. From there, the train traverses the Andean plateau, where vast deserts, snow-capped peaks, and herds of llamas and vicuñas fill the landscape.
The crown jewel of this journey is crossing the Polvorilla Viaduct, a towering steel bridge that stretches 63 meters (207 feet) above a deep canyon. As the train slows to a crawl, passengers can open the windows to capture panoramic views and take stunning photos of this breathtaking moment. While the train does not have a dedicated observation car, the ability to open windows allows for an immersive experience, letting you fully appreciate the dramatic landscapes and the engineering marvel beneath you.
Your adventure begins in the city of Salta, known as “La Linda” (The Beautiful) for its colonial charm and vibrant culture. From Salta, you’ll travel by car to San Antonio de los Cobres, allowing for several scenic and cultural stops along the way.
A key stop is Alfarcito, a small Andean village with a rich cultural and social legacy. Beyond its breathtaking views and artisan markets, Alfarcito is home to a school project founded by Father Chifri, a beloved priest who dedicated his life to improving the lives of the local community. His vision led to the creation of a rural educational institution where children from remote Andean villages could receive quality education while staying connected to their cultural roots. Today, this school stands as a symbol of hope and resilience, providing opportunities for children in one of Argentina’s most remote regions.
The drive to Alfarcito, through the stunning Quebrada del Toro, is a highlight in itself, with dramatic landscapes of towering red cliffs, lush valleys, and traditional Andean settlements setting the stage for the train ride to come.
The Tren a las Nubes is just one of the unforgettable experiences included in our Buenos Aires to Lima: High Andes & Machu Picchu tour. This meticulously crafted 21-day adventure takes you on a journey through the heart of South America, blending awe-inspiring landscapes, rich cultural heritage, and iconic destinations.
Highlights of the Buenos Aires to Lima Tour:
This tour is designed for travelers who value the journey as much as the destination, with unique experiences like the Tren a las Nubes adding an extra layer of magic to an already extraordinary itinerary.
The Tren a las Nubes is more than just a train ride—it’s a journey through history, culture, and the breathtaking beauty of the Andes. Paired with our Buenos Aires to Lima: High Andes & Machu Picchu tour, it offers a truly unforgettable South American adventure.
Ready to explore the Andes in a way few others have? Visit Rail South America to learn more and reserve your spot today. Don’t wait—this is your chance to experience South America’s most iconic train ride and so much more!
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