Aim for the lower range of this estimate if you are in the shade, and the higher range when walking in the sun. You will not need as much water while sitting. Most people underestimate the amount of water they need. Rely on solid measurements or urine color, not on how thirsty you feel.
Drinking too much water on an empty stomach can lead to vomiting. If you think this may happen, start with a swallow or two. Wait a few minutes for your stomach to settle, then drink some more.
If your sweat does not taste salty, or does not sting when it falls into your eye, you need more salt. Salt only helps water retention if you are hydrated enough to take advantage of this effect. If you are dehydrated, large amounts of salt can make the problem worse. [6] X Research source
In an emergency situation, walk during the night instead of the day.
Bees in particular often fly directly between water sources and the hive.
When digging, choose a low spot where water would naturally drain. Dig about 30 cm (1 ft) deep. If you notice damp soil, make the hole wider and wait a few hours for water to seep in.
In dry riverbeds, the force of the water may have eroded the outside bend of a river during a tight turn. The last flow of water may get trapped in an eroded depression here, so this is a good place to dig. [11] X Research source
In shady canyons or valleys, these pockets can stay full for days after a rainstorm, sometimes for weeks in a cool, sheltered area.
Boiling water is even more effective, if you have access to a fire. All pathogens should be killed by the time the water reaches a boil, so no significant amount of water will be lost to steam. [13] X Trustworthy Source Princeton University Leading academic institution devoted to expanding and sharing knowledge Go to source
