Faced with one of the toughest winter environments in the world, competitors in the Iditarod Trail Invitational need to have what it takes to survive the brutal conditions of the frozen Alaskan wilderness. This title introduces readers to a race that follows the same path as the famous Iditarod Trail Sled Dog Race, but instead features human competitors trying to make it through this month-long test on their feet, bikes, or skis. The title features...

What makes snowboarding an extreme sport? Start with daring jumps, flips, and tricks--and then add a slippery surface. Learn all about alpine racing, and snowboarding on the half-pipe, down rails, and off ramps.