Whether you’re trying to survive in the frigid wilderness or you’re camping out in the winter for fun, building a quinzee is a great option for creating a shelter from the elements. All you need for its construction is a big pile of snow, which you then hollow out. Because it lacks a skeletal support structure, you’ll want to keep your quinzee relatively small — ideally building it for 3 people at the most. Shoveling all that snow works up a sweat, and snow will fall on you as you hollow out the inside, so be sure to change into dry clothes when you’re done to prevent hypothermia.