• Everest South, Nepal Expedition
    Featured Trip

    Everest South, Nepal Expedition

  • Manaslu Expedition, perfect first 8000er
    Featured Trip

    Manaslu Expedition, perfect first 8000er

  • Bolivian Peaks
    Featured Trip

    Bolivian Peaks

  • Carstensz Pyramid (Puncak Jaya), highest peak in Oceania
    Featured Trip

    Carstensz Pyramid (Puncak Jaya), highest peak in Oceania

Adventures begin here

Taking people on extraordinary adventures for years.

Arnold Coster Expeditions is a small boutique adventure company run by the owner Arnold Coster himself. Arnold is probably the most experienced leader in the Himalayas at the moment and has more than two decades of leadership experience. He led close to 100 climbing expeditions in the Himalayas and other greater ranges!

We don’t advertise with catchy slogans, questionable success rates or flashy videos claiming to be the best. We have been around long enough to know what we offer; good value for money with responsible leadership! Arnold learned his experience the hard way and is happy to share this experience with anybody. When you contact Arnold Coster you will immediately notice his down to earth mentality and this is how we run our trips also.

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Embark on unforgettable journeys, where every destination tells a story and every moment becomes a memory.

WHAT CLIMBERS SAY

Discover What Our Fellow Travelers Say About Us

Our travelers’ experiences speak for themselves. Explore genuine testimonials from clients who trusted us to make their journeys extraordinary.

Explore All Testimonials
  • ★ ★ ★ ★ ★
    I have trekked in several countries, but my Everest Base Camp journey with Arnold Coster was easily one of the best organized trips I have ever joined. Our guide was knowledgeable, patient, and always focused on safety. Every detail, from accommodation to acclimatization planning...
  • ★ ★ ★ ★ ★
    What impressed me most was the communication before and during the trek. I had many questions, and the Arnold Coster team answered everything clearly. During the Annapurna Circuit, our guide constantly checked on our pace and health. I never felt rushed. The scenery was spectacul...
  • ★ ★ ★ ★ ★
    I wanted a trip that combined culture, comfort, and local experiences, and Arnold Coster delivered exactly that. From the heritage sites in Kathmandu to the peaceful beauty of Pokhara, everything was thoughtfully arranged. Our guide explained history and traditions in a very enga...
  • ★ ★ ★ ★ ★
    The Manaslu Circuit is challenging, and choosing the right company matters. Arnold Coster exceeded expectations. Their team was reliable, experienced, and genuinely cared about our wellbeing. Even when weather conditions changed, they adapted the plan smoothly. I always felt I wa...
  • ★ ★ ★ ★ ★
    As someone with limited trekking experience, I was nervous before coming to Nepal. The Arnold Coster team made everything easy. They encouraged me, adjusted to my pace, and made sure I was comfortable every day. Watching sunrise from Poon Hill was magical. I would absolutely book...
  • ★ ★ ★ ★ ★
    Luxury travel in Nepal can be difficult to organize well, but Arnold Coster handled it flawlessly. Hotels, transportation, private experiences, and service quality were excellent throughout the journey. What stood out most was the balance between comfort and authentic local exper...

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