International School of Mountaineering
Founded in 1965, the International School of Mountaineering (ISM) is a climbing and mountaineering school based in Leysin, Switzerland. It provides Alpine mountaineering courses for English-speaking clients, offering various instructional courses and guided experiences in the Alps.
- Ski Touring
- Custom Courses
- Private Guiding
- Expedition Training
- Ice Climbing Courses
- Guided Alpine Mountaineering Courses