A mountain school, rooted in Chamonix.

Started with one office, one rope and one rule.

Aventura began in 2009 as a single desk on Place de l'Église in Chamonix, run by Julien Rousset and a few guides he had climbed with for years. The idea was simple: teach mountaineering properly, in small groups, and never rush a summit.

Seventeen seasons later we work across the Mont Blanc massif, the Valais and the Dolomites, but the rule has not changed. The mountain decides the plan, not the calendar. If the snow is poor or the forecast turns, we change the objective and use the day to learn something useful.

Many of our guests come back. Some return for a harder route, some to lead their own rope, and some because they like how a day in the hills feels when it is planned with care.