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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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Private Guiding 1

Private Guiding 2027

Private Guiding & Custom Weeks

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Climbing Matterhorn Alps 1

Matterhorn Ascent - A Classic Alpine Dream!

Level 3: Private Guiding & Custom Weeks

1:1 Ratio
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Custom Courses 1

Custom Courses 2027

Private Guiding & Custom Weeks

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Not sure which course to pick?

Are you wondering which course is right for you? Don't fret, we are on hand to help you choose.

Have something else in mind?

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

Thank for an amazing couple of weeks! The ISM Guides were fantastic. I learned so much & had a lot of fun. I have come home feeling like a proper mountaineer, having made some great new friends and with some unforgettable memories. I plan to come back next year!Summits & Skills 4000m Summer 2026

Tim
Summits & Skills 4000m (Instructional Course)

What an incredible week learning the basics of Mountaineering. The course is perfectly balanced between summiting high alpine peaks and learning rope, climbing and glacier skills.Summits & Skills 4000 2026

Will
Summits & Skills 4000m (Instructional Course)

I just wanted to say that I enjoyed the course immensely and learned a great deal.Doing this course definitely gave me confidence and I am considering doing more courses with you in the future.Summits and Skills Summer 2026

Anna
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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