After "brunch" we were at the beginning of the end of "Dead Woman's Pass". We hiked from 3100 meters to 4200 meters in only 12 km. It was a constant Stair Master plus the lack of oxygen at 4,000 meters (13,000 ft.) and not being fully acclimatized made this hike so difficult - almost unbearable for some people on the trail. The third day was the most enjoyable. A great balance of hills, stairs, ruins and weather.