left their base camp by a lake and stared climbing the north face of a mountain called Siula Grande in the Peruavian Andes. This climb was incredibly dangerous but the two men were experienced climbers and physically fit.On Day 1,the weather was good and tbhe climb began well.
At night they made a snow cave and slept the side of the mountain.Three days later,after some very difficult climbing and bad weather, the two men stood at the summit. Unfortunately, the weather was getting worse so they didn't stay long. As they were going down a mountain ridge, a disaster happend.