Knowing outdoor skills is essential in survival situations and having the right gear is imperative. If you don't have those essential supplies and get lost in the wilderness, your chances of survival decrease significantly. Without shelter, you may be exposed to the elements, which can lead to hypothermia or heatstroke. Without a way to start a fire, you may have difficulty staying warm, cooking food, or signaling for help. Without a reliable source of clean water, you may become dehydrated.