Peru & Machu Picchu
The campsite at Phuyupatamarca, Town Above the Clouds, is stretched along a steep ridge with magnificent views. Each tent has a view - and if you are not careful, you could fall a LONG way downhill. Of course, you must negotiate the trail to and from the dinner tent in the dark! Many people take Diamox to ward off altitude sickness, but it is a diuretic too. It isn't really fun trekking to the cliffside john when the temperature is below freezing!