Superstar alpinist Karl Egloff is in Nepal preparing for an attempt on the Everest speed record, without supplemental oxygen or Sherpa support. The Swiss-Ecuadorian climber, who holds speed records on Makalu, the fifth-highest mountain in the world, as well as Kilimanjaro, Aconcagua, Elbrus, Denali, Cotopaxi and Huascarán, is currently in the Khumbu with fellow Ecuadorian Nicolás Miranda and has just climbed Mera Peak as part of his acclimatisation process.
Karl will also be True Summit Adventures’ lead guide on Aconcagua in January 2027, where he will lead a private journey to the highest peak in the Americas — helicopter-accessed, luxury camp-supported, and based at the Hyatt Hotel Mendoza — for a small group of guests looking to experience one of the world’s great mountains in exceptional company and style.
True Summit Adventures was founded by Oliver Browne, whose career in luxury and experiential travel began in his early twenties, when, as a professional player at Guards Polo Club in Windsor Great Park, he took clients to Argentina to play polo at its most famous estancias and with its leading players.
Over more than a decade as a professional player, he organised, managed and led dozens of high-value, polo-centric holidays and tours to countries as diverse as Argentina, Barbados, South Africa and India.
After retiring from the sport in 2015, he spent several years working in European family offices, where his focus was high-value travel and concierge services.
By 2019, Oliver had gone ‘all in’ on adventure, moving to Ecuador to pursue his ambition of becoming a high-altitude mountaineer. He has climbed extensively across the Alps, Andes, East Africa and the Himalaya, reaching Camp 3 on Mount Everest in May 2021 before becoming unwell with Covid-19.
Six weeks after leaving hospital in Kathmandu, he won the NOMAN Barcelona to Ibiza rowing race in 93 hours and placed second in the 2022 edition of the Talisker Atlantic Challenge, rowing the Atlantic in 32 days and 13 hours — the eighth-fastest time recorded.
“True Summit is a passion, born from many years in experiential and luxury travel, and on adventures around the world,” says Oliver. “We have created a company where the adventure is serious, the standards are uncompromising, and guests are supported by the leading people in their fields.”
Alongside Karl Egloff, True Summit’s guide roster includes Ed Viesturs — the first American to summit all fourteen 8,000-metre peaks without supplemental oxygen — Kami Rita Sherpa, holder of the world record for the most Everest ascents with 31, and David Goettler, a North Face athlete with seven no-oxygen ascents of 8,000-metre peaks.
The company’s portfolio spans private mountain expeditions, ski journeys, tented, frontier and riding safaris, yacht and ocean adventures, and immersive cultural journeys from Mexico to Scotland and Mongolia to Bhutan. Operating at the intersection of luxury and serious adventure, each journey combines the highest standards of travel with deep expertise in remote and challenging environments.
The company maintains a long-term commitment to supporting the communities, people and environments in which it operates through partnerships, fundraising initiatives and ongoing support.
Each adventure is handcrafted and purpose-led, built around the guest’s individual interests, dreams and ambitions. Whether it’s a landmark summit, a rare wildlife encounter, or a moment of reconnection for family or self, these are journeys designed to leave a lasting mark.
Company Name: True Summit Adventures
Contact Name: Oliver Browne, Founder
Address: 2 Borelli Yard, Farnham, United Kingdom
Phone: 020 4585 8888
Website: www.truesummitadventures.com
