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International School of Mountaineering
Classic Alpine Ascents

International School of Mountaineering

Mountaineering expertise and passion since 1965

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Why Choose ISM?

Our pedigree speaks for itself

Founded in 1965, ISM is a prestigious English speaking climbing and mountaineering school based in Leysin Switzerland. We are by far the longest established provider of Alpine mountaineering courses to English speaking clients and attract clients from all over the world.

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Icefall Climbing 4
Off Piste Skiing 3

Sharing Our Knowledge

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Dave on sighting

On-sighting - Tips and Techniques

Verb - To climb a route that you’ve not climbed before, leading it from bottom to top without resting or…

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Kalymnos 2011 063 PS

Red-Pointing - Tips and techniques

Verb - To climb a route from bottom to top cleanly without any artificial rests such as sitting on the…

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The nuts

New Routes in the Canadian Rockies

Every day’s a road trip, as we thread our way through the beautiful mountains of the Canadian Rockies in search…

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Calum e5 Langdale 2

Climbing Motivation

Some thoughts on motivation and raising your climbing standard.

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DSC04458 2

Which Boots do I need?

Boot and footwear choice represents perhaps the single most important decision of all when considering your mountaineering equipment.

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Kyrgyzstan 8597

Some thoughts on rope choice linked into decision making

So, as a BMG IFMGA Mountain Guide and climber what ropes do I use?

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James Brown Original Route 2

Traditional Climbing on a Single Rope

So, traditional climbing on a single rope - old school or maybe just a modern take on things?

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Kevin Borrowdale

Why We Love British Trad Climbing!

Why we love British trad climbing!

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Kyrgyzstan 2019 5711

The Art of Making Traditional Kyrgyz Bread!

Reflecting on a special day in the Pamir Mountains, Kyrgyzstan 2019

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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)

Thank for an amazing couple of weeks! Matt and Stu were fantastic. I learned so much but also 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!

Tim

"I loved the course and Terry was great. I learned a lot and had a lot of fun and feel confident and secure in my technique".

BT
Summits & Skills 4000m (Instructional Course)

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