Survival skills
A human being can survive an average of three to five days without the intake of water. The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise.
Soakage (source of water)
In the 1930s, when H. H. Finlayson made his journeys through the desert by camel, he noted that a gelded male camel, after a hard three-and-a-half-day journey in intense heat without water, drank by actual measure without stopping, and fifteen minutes later, another .