Eva Holland attended Extreme Polar Training, a school that teaches how to survive what mother nature has to offer 2.5 degrees south of the Arctic circle. In addition to treacherous, bruising ice, it includes temperatures of -40F and wind so cold and strong it gives you a headache before it tries to blow you over. For Outside, she recounts the experience and the final exam — a weeklong 40 mile loop in the frozen Canadian north.