The climbers were lucky to have hard snow most of the way up to ease their ice climbing (above). On the way down, however, they have to navigate the Schwartz ledges – big saraks and ledges that threaten to topple over. Climbers have to tip toe at night across the face of Mt Robson, when the air is cool enough to keep the snow and ice in place.

The climbers were lucky to have hard snow most of the way up to ease their ice climbing (above). On the way down, however, they have to navigate the Schwartz ledges – big saraks and ledges that threaten to topple over. Climbers have to tip toe at night across the face of Mt Robson, when the air is cool enough to keep the snow and ice in place.