Conserve Water: Make the Water You Have Last As Long As Possible
The time to start conserving water is before you begin to get low. If you even suspect you're going to run low on water, it's time to take action. The water you save today may be the water that saves you tomorrow.
When water is low, try to avoid unnecessary actions or movements, especially in the heat of the day. The more you move and exert yourself, the more water you're going to lose via sweat. Add in a little heat and you're going to start losing water at a pace you can't sustain without a readily available water supply.
One mistake people tend to make is to rest during the morning, afternoon and evening and to do most of their traveling during the heat of the day. It's best to do your traveling when it's cool out and to find shade and stay in it when the weather begins to heat up.
Get any work you need to do done early in the morning or in the late afternoon and relax while the sun is at its highest point. Whenever possible try to rest on or near grasses, trees with low-hanging branches and bushes. You'll stay cooler because plants release water vapor throughout the day.