TL;DR
Polish skier Bartek Ziemski has completed a first-of-its-kind descent of Lhotse from the summit to Base Camp without supplemental oxygen or stopping. His feat highlights his skill and dedication to high-altitude ski mountaineering, distinct from more commercial expeditions.
Polish ski mountaineer Bartek Ziemski has completed a historic descent of Lhotse from its summit to Base Camp without the use of supplemental oxygen or stops, confirming his achievement as a significant milestone in high-altitude skiing.
Ziemski, 37, arrived in Nepal in early April, acclimatized by climbing Mera Peak, and then moved to Base Camp for the Lhotse ascent. He summited Lhotse on May 12 after a push starting at 1 A.M., making him the first climber of the season to reach the summit via this route. During his descent, he navigated steep, icy slopes and the famous Lhotse Face, a challenging section historically known for ski descents, including Yuichiro Miura’s 1970 attempt.
What sets Ziemski’s achievement apart is that he descended from the summit to Base Camp without stopping or using bottled oxygen, a feat not previously recorded for this route this season. His descent included a ski through the treacherous Khumbu Icefall, an area typically avoided during descents due to its danger, especially for unroped skiers. Ziemski’s approach was deliberate, aiming to avoid crowded routes and potential hazards posed by climbing infrastructure.
Why It Matters
Ziemski’s descent represents a rare and technically demanding achievement in high-altitude ski mountaineering, emphasizing skill, endurance, and risk management. It highlights the potential for new routes and techniques in extreme skiing, independent of commercial expeditions or support teams. The feat also underscores Poland’s continuing legacy in high-altitude mountaineering and ski descents, contrasting with more commercialized or heavily supported climbs.
This accomplishment could influence future high-altitude ski expeditions and inspire other climbers to pursue similar solo, unsupported descents, expanding the boundaries of what is considered possible in extreme environments.

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Background
High-altitude ski descents have a storied history, with notable moments such as Yuichiro Miura’s first descent of Everest’s face in 1970. More recent efforts include Hilaree Nelson and Jim Morrison’s descent from Everest’s South Col in 2018, supported by a team and film crew. Ziemski’s approach was markedly different: he arrived early in the season, avoided crowds, and completed his descent unsupported, emphasizing individual skill and endurance rather than team support or sponsorship.
His ascent was delayed by the serac in the Khumbu Icefall, a common hazard that has affected climbers in recent seasons. Ziemski’s climb and descent took place during a period of variable weather and ice conditions, adding to the difficulty of his undertaking.
“I wanted to do it early in the season to avoid crowds and complications. Descending without stopping or oxygen makes it even more rewarding.”
— Bartek Ziemski
“Ziemski’s ascent and descent were remarkable, especially considering the conditions and the risks involved in skiing down Lhotse unsupported.”
— Expedition guide from Imagine Nepal

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What Remains Unclear
Details about the exact route Ziemski took during his descent, including the specific technical challenges faced on certain sections, remain unconfirmed. It is also unclear whether this will be officially recognized as a record, as no formal body has validated the feat yet. Additionally, the long-term impact of this achievement on high-altitude ski mountaineering is still uncertain.

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What’s Next
Ziemski is expected to return to Base Camp in the coming days. His achievement may inspire other solo or unsupported high-altitude ski descents, and he may share more details about his route and techniques. Further validation or recognition from mountaineering organizations could follow, and he might plan additional expeditions to similar peaks.
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Key Questions
Was Ziemski supported during his descent?
No, Ziemski completed the descent without the use of supplemental oxygen or external support, making it a solo, unsupported feat.
Is this the first unsupported ski descent of Lhotse from the summit?
It is believed to be the first such descent during this climbing season, with no prior record of unsupported descents from the summit to Base Camp on Lhotse reported publicly.
How does this compare to previous ski descents of Everest or Lhotse?
Unlike previous descents supported by teams or film crews, Ziemski’s effort was solo and unsupported, emphasizing individual endurance and skill in extreme conditions.
Will this achievement be officially recognized as a record?
There has been no formal certification yet; recognition depends on validation by mountaineering and ski associations.
What are Ziemski’s future plans?
He has not publicly announced future expeditions but may consider similar unsupported high-altitude ski descents or other challenging peaks.