Uploaded February 2021 | Updated September 2026, 1 day ago
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Mark Beaumont and James Lowsley-Williams are in search of the world's longest descent. A search which has taken them to the foothills of the Ojos del Salado in Chile, the world's highest active volcano. It's a crazy plan: scale all 6893 metres of the volcano, with bikes on their backs, enduring extreme altitude and inhospitable terrain. Before turning around and riding back down, all 300 kilometres to the Pacific Ocean.
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It's a crazy plan: to ride down the world’s longest descent from the roof of the Andes at 6890m to the Pacific coast of Chile - 300Km in all. But to even get to the start line, James Lowsley-Williams & Mark Beaumont need to scale the world's highest active volcano, Ojos del Salado with their bikes strapped to their backs. To make the start line they must acclimatise to the crushing altitude and the barren landscape before their attempt begins. Mark and James have nailed several epic rides in the past, but this latest attempt moves them into a different league, with extreme altitude and barren inhospitable landscapes challenging them before they can even begin.
GCN+ is the home of the world’s most thrilling live bike races, highlights, exclusive shows and epic cycling documentaries that you can enjoy live + ad-free + on-demand + interactive + all-year round.
GCN+ is more of everything you’ve come to love from GCN but taken to the next level: more entertainment, more races, more inspiration, more access, more analysis, more science and more to watch with exclusive and original long-form films, documentaries and shows.
GCN+ is cycling like you’ve never seen it before.
Sign up to GCN+ for the best cycling documentaries, shows, and adventure films from the 15th February. Plus live racing, highlights and analysis, all ad-free and get 50% off in February: https://gcn.eu/plus
Mark Beaumont and James Lowsley-Williams are in search of the world's longest descent. A search which has taken them to the foothills of the Ojos del Salado in Chile, the world's highest active volcano. It's a crazy plan: scale all 6893 metres of the volcano, with bikes on their backs, enduring extreme altitude and inhospitable terrain. Before turning around and riding back down, all 300 kilometres to the Pacific Ocean.
Sign up now: https://gcn.eu/plus
It's a crazy plan: to ride down the world’s longest descent from the roof of the Andes at 6890m to the Pacific coast of Chile - 300Km in all. But to even get to the start line, James Lowsley-Williams & Mark Beaumont need to scale the world's highest active volcano, Ojos del Salado with their bikes strapped to their backs. To make the start line they must acclimatise to the crushing altitude and the barren landscape before their attempt begins. Mark and James have nailed several epic rides in the past, but this latest attempt moves them into a different league, with extreme altitude and barren inhospitable landscapes challenging them before they can even begin.
GCN+ is the home of the world’s most thrilling live bike races, highlights, exclusive shows and epic cycling documentaries that you can enjoy live + ad-free + on-demand + interactive + all-year round.
GCN+ is more of everything you’ve come to love from GCN but taken to the next level: more entertainment, more races, more inspiration, more access, more analysis, more science and more to watch with exclusive and original long-form films, documentaries and shows.
GCN+ is cycling like you’ve never seen it before.










