You won't last long in a wilderness survival situation without reliable food sources. I learned from personal experience how important those calories really are. These videos capture some of my favorite experiences with wild edible foods.
Hiking and trekking in the wilderness is a great way to stay in shape but when at home in the comforts of modern society it is important to stay physically active and my favorite way is with outdoor workouts. This way I receive the added benefits of sunshine and fresh air.