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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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Summits & Skills 1

Summits & Skills 4000m (Instructional Course)

Level 1: Instructional Courses

May - Sep 2026
4:1 Ratio
£1,895
Climbing Grunegghorn 2

Classic AlpinISM (Instructional Course)

Level 2: Instructional Courses

Jun - Aug 2026
3:1 Ratio
£1,995
Monte Rosa Traverse 2

Monte Rosa 4000ers

Level 2: Guided Courses

Jun - Sep 2026
3:1 Ratio
£1,995
Private Guiding 1

Private Guiding

Private Guiding & Custom Weeks

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Student Week 1

Student Alpine Week (Instructional Course)

Level 1: Instructional Courses

Jul - Aug 2026
6:1 Ratio
£1395
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
Matterhorn Ascent 1

Matterhorn Ascent

Level 3: Private Guiding & Custom Weeks

1:1 Ratio
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Custom Courses 1

Custom Courses

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.

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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

Summiting Mont Blanc was an important milestone for me which I am grateful to all at ISM. Particularly Terry, who is the ultimate professional never compromising on safety. Max is a pure gem with wonderful guidance and outstanding people skills in abundance.Altogether a brilliant week!

David (2017)

Neil, our guide for the week, was exceptional; a true professional, a huge inspiration and just great company. He shared so many useful tips with us and had great stories to share too. Looking forward to booking another course with ISM in 2022!”

William Summits and Skills 4000m 2021

The classic alpinism course last week led by Swedish Daniel was excellent! The itinerary was really well planned taking into account the less than perfect weather and the abilities and aspirations of the group - we all learned loads.

Chris Ward
Classic AlpinISM (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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