WILD YAK EXPEDITIONS was founded in 2014 and is based on dedication, experience and harmonious combination between Swiss quality and great Himalayan high altitude proficiency. The founder Andrea Ursina Zimmermann – Everest Summiteer and a former high-level athlete who is also specializes in international sports law and Norbu Sherpa – seven times Everest Summiteer and more than 18 times on other numerous 8000-meter peaks, main protagonist in the Swiss documentary movie “Sherpas: the True Heroes of Mount Everest” – share the vision to enriching the people’s living through promoting adventure traveling in the Himalaya.


After working and guiding more than 15 years in the real core of the expeditions, trekking and traveling around the globe, the WILD YAK EXPEDITIONS founders had observed and experienced the ups and downs of the traveling business.
They committed to found WILD YAK EXPEDITIONS based on new objectives by focusing mainly on the small group, safety, hospitality, quality of services and significantly empowering the livings of the guest and locals. 

Most of the outdoor companies need to collaborate with a local company to be operational with their travel offers and adventure packages. In numerous cases, we have observed that the philosophy can strongly differ between the two operators, when it comes to the logistic and organisational points and in particular in emergency situations, where rapid decisions are necessary.

WILD YAK EXPEDITIONS Switzerland and Nepal has the same co-founders and our philosophy is one and entire. The decisions are thus taken according to the same philosophy.

WILD YAK EXPEDITIONS main philosophy and aspirations is base on:


  • To provide best quality services
  • More flexible and cooperative
  • Easier to understand the needs and requirements of each guest
  • Create a solitary ambiance between our guests
  • Make it easier to understand the local team and their culture and traditions
  • Local teams are not overloaded and make the trip more enjoyable for each guest

 SAFETY FEATURES “No compromise

  • 24-hours medical emergency assistance by doctors specialized in high altitude medicine
  • Supplementary Oxygen for emergency and first aid kit with Oxymeter
  • Regular weather updates, to assist when crossing high mountain passes and in case of sudden bad weather
  • Trained and experienced Leaders/Guides
  • Radios and Satellite phone for a communication
  • Water purifier in the remote and off track trekking and expeditions
  • Good connections with rescue airlines in high altitude emergency


The success of the trip depends on both the personal condition of each participant and the experience of our Team. WILD YAK EXPEDITIONS’ team has been carefully selected according to their expertise in the particular environment and personal aptitudes.

Our team is thus well-experienced, skilled, trained, courteous and helpful with young broad-minded people who are still much connected to their spiritual thoughts. It consists of UIAGM Mountain Guides, highly academic qualified individuals and licensed Local Guides. WILD YAK EXPEDITIONS team has an outstanding climbing experience in mountaineering. With ascents of some of the World’s highest mountains such as Mount Everest, K2, Kanchenjunga, Makalu, Lhotse, Dhaulagiri, Annapurna, Manaslu, Cho-Oyu, Shishapangma, Gasherbrum I & II, last but not least Nanga Parbat and the beautiful Ama Dablam pyramid.

We believe that the best way to explore the landscape and culture is to let you guided by the local people but in your respective languages. Our Trekking Guides are fluently speaking numerous languages such as English, French, German, Italian and Chinese. “It is always funny to hear local jokes in your languages told by a local guide.”

WILD YAK EXPEDITIONS’ is proud to support our local staff by providing them with a fair salary, encouraging them to take mountaineering workshops, wilderness first aid training, environmental preservation courses, garbage management, team leadership, and language refreshers on a regular basis.


WILD YAK EXPEDITIONS is very concerned about the porters. We support and respect the porters’ rights and have high standards to make sure that they are treated well. We pay them a fair salary with less weight to carry, including a bonus and providing them with good food allowances, clothes, shoes, sunglasses, rescue and medical insurances.


Through each participation to a Trip with WILD YAK EXPEDITIONS, our Guests contribute to Norbu and Andrea’s Swiss Association “The Butterfly Help Project” that supports namely the Sherpa kids of the “high-altitude porters” who passed away by enabling them to continue their education and studies. An amount from each Trip is thus donated to the “The Butterfly Help Project”. WILD YAK EXPEDITIONS has already supported the building of the Shree Janajyoti School of the village of Leptung (Dolakha district) for more than 342 kids, which was completely destroyed by the 2015 earthquake. WILD YAK EXPEDITIONS is now planning to contribute to the rebuilding of the Shree Primary School of the Palep village in the Langtang National Park (Rasuwa district).

More than 5600 schools have been destroyed in 2015…