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International School of Mountaineering
Summer Alpine 2

Instructional Courses

 Walking along a ridge

Guided Courses

 Summer Alpine 1

Private Guiding & Custom Weeks

Summer Alpine Mountaineering

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Monte Rosa Traverse 2

Monte Rosa 4000ers

Level 2: Guided Courses

Jun - Sep 2026
3:1 Ratio
£1,995
Technical Alpine Rock 1

Alpine Rock

Level 3: Guided Courses

Jul - Aug 2026
2:1 Ratio
£2395
Technical Alpine Ascents 1

Technical Alpine Ascents

Level 3: Guided Courses

Jun - Aug 2026
2:1 Ratio
£2495

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Do you know what you want but don't see it in our usual courses? Call us and we'll see where we can help.

Summer Alpine Mountaineering

Our Courses allow you to progress in a logical, and thorough way, ensuring you get the full benefit from our courses and are able to move on the our more advanced courses if you wish.

Summer Highlights

  • Instructional courses
  • Guided climbing
  • Custom weeks for groups
  • Private Guiding
  • Expert guiding and instruction from experienced ISM Guides
  • A prestigious English speaking climbing and mountaineering school based in Leysin Switerland since 1965

Testimonials For ISM

I just wanted to thank you as well as Mark, our guide for the amazing week. The course was well organized and was just perfect for a beginner to mountaineering. We couldn't have wished for a better adventure. The memories are irreplaceable.

EP
Summits & Skills 4000m (Instructional Course)

Learned loads and acclimatised well during the course. Its obviously been very carefully planned. Guiding and Instruction was excellent. Anders was fantastic throughout and made the whole course really good fun. A very professional instructor with a great sense of humour. Highly recommended.

Leigh Ritchie
Summits & Skills 4000m (Instructional Course)

What a brilliant week we had! I really enjoyed the fact that the course was very hands on and we were given freedom and responsibility to look after ourselves. I really like the fact that the price was all-inclusive, the the course was excellent value for money!

Rachel (2017)
Summits & Skills 4000m (Instructional Course)

All Reviews

Team Spotlight

Carlo Cosi

Carlo Cosi

IFMGA Italian Mountain Guide

Carlo Cosi was born in Padua, northern Italy, and has been a Guide since he was 23. He is a National Climbing Instructor and has a degree in Physical Education.

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Knowledge Base

Is Your Avalanche Transceiver Working Properly?

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