Mount Everest

Mount Everest, Earth's highest mountain – to this day it's been climbed by almost 4,000 alpinists from around the world, with more and more coming each year. Most of them are tourists without the experience or skills needed to climb an eight-thousander. Without proper help they wouldn't make it to the Himalayas, let alone brave the mighty Chomolungma.

Fortunately, that's where you come in, an experienced mountaineer and mountain guide. You've got Broad Peak, K2 and other eight-thousanders under your belt, and you've climbed Mount Everest several times. This time you face a far greater challenge: You must lead a bunch of tourists to the peak and safely get them back to base. You gaze at the mountain and you know this to be true – what is child's play for you might be the last adventure of your clients.

You must plan where to set up camp and how to deal with acclimatization, who to take up to the peak and when, and who to lead down the mountain. When you look at your clients' enthusiastic faces, you know that their lives are in your hands.