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International School of Mountaineering

Summer Alpine Mountaineering

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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 had a fantastic week and learned so many skills on the course.Adrian was a superb instructor , the course content,  skills and locations we went to were great and instruction was at a top levelAll in all I had a great time and would 💯 like to come back againSummits and Skills Summer 2026

Eddie
Summits & Skills 4000m (Instructional Course)

Thanks for a great week, in some pretty challenging and extreme conditions. Thanks for keeping us safe, teaching us loads, and being all round fantastic fun. I'd look forward to coming on another trip with you guiding.

Steve

Fantastic trip, both ISM Guides were amazing! Wholeheartedly loved the trip, already looking at doing another one!Summits & Skills 4000m 2026

Edward
Summits & Skills 4000m (Instructional Course)

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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