Challa, Bolivia
Well I made it to dawn! I had an internal struggle with my conscious (while cosily pinned down under 6 layers of bedding that weigh enough to trap the less than fully able-bodied) which I lost, so I got up!
Turns out it's not that cold and after a short but breathless clamber up a few terraces I find a path to the summit. It is pitch black at 05.55, but a merest hint of dawn arrives soon and within 35 minutes it's light and the warmth of the day to come is perce...