Not having any water for 24 hours, however, while survivable, depletes both your physical and mental strength, making it more difficult to perform the tasks necessary to making it out the other side. And after just three days without hydration, your body will shut down, and it'll be lights out for you.

With about two liters per day your body will be able circulate blood, process food, regulate body temperature (which prevents hypo- and hyperthermia), think clearly, and successfully carry out a host of other internal processes.

You can see how crucial water is to your survival. Luckily, with just a little bit of know-how, water can be found relatively easy in almost any environment on the planet. In today's article, we'll walk you through several methods for finding water that will work for temperate climates and a variety of others, as well as methods that are particularly suited for tropical, freezing, and desert regions.