Overview

• The four-man team summited Mount Everest at 7:10 am local time on May 21, 2025, and is descending with plans to return to London within their seven-day target.
• They used hypoxic tents and the controversial inhalation of xenon gas to pre-acclimatise, bypassing the traditional months-long acclimatisation process.
• The expedition aims to raise over £1 million for veterans' charities, with a focus on supporting children of fallen service members.
• The ascent, led by expedition organiser Lukas Furtenbach, has drawn scrutiny from the mountaineering community and regulatory bodies over the use of performance-enhancing xenon gas.
• MP Alistair Carns, a decorated Royal Marine reserve colonel, described the climb as a significant challenge and pledged not to attempt another mountain ascent.