Hiking is not only rewarding to the eye but is also a great way to burn some calories and get yourself into shape. According to livestrong.com the number of calories burn depends on your body weight, intensity, backpack weight and the terrain type. The more you weigh, the greater the intensity, the heavier your backpack and the harder the terrain the more calories you will burn.
Source:
http://www.livestrong.com/article/299000-the-calories-burned-per-hour-in-hiking/
