Trekking is a form of walking, undertaken with the specific purpose of exploring and enjoying the scenery. It usually takes place on trails in areas of relatively unspoiled wilderness.

The great mountain ranges are some of the most beautiful and interesting areas of the world to visit. As they are often not served by roads, they can also be the most remote and difficult places to get to and the only real way to see them is on foot. For some people the trekking may be an achievement, a goal or a difficult task to be accomplished, to get high with an adrenaline rush. For others, it is a means to enjoy the magnificent panoramas and to get a taste of the joy of discovery. Often the peoples of the mountains with their culture, traditions, and religions provide an equal interest to the scenery.