The story of the opening of one of the biggest canyons in the world. The Chamjé Khola canyon is located right in the heart of Nepalese Himalaya, between the Annapurnas (8091m) and Manaslu (8163m) mountains. The Himalayan canyon team, a French association, have opened more than 30 canyons there since 2004, but they had to wait until 2011 to be ready to face the monster of Chamjé Khola. The final exploration required 5 days of effort, with delicate and snowy access at high altitude, with the total length of the canyon being 7km and having 2300m of descent! The longest and most committed canyon ever done. A beautifully captured film by Laurent Triay.