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The 10 Essentials: Hydration

by Alicia MacLeay
June 23, 2008

While a comprehensive packing list depends on many factors, certain outdoor gear is considered essential whether you’re heading off on an extended backcountry bushwhack or exploring the trails in your local woods. As part of a weekly series, here's a look at outdoor essential number nine:

#9. Hydration (extra water)

Carry enough water per person and know where water sources are located on your route. A general rule of thumb is to have 3 to 4 liters (or 1 gallon) of water per person per day. The amount of water needed varies widely though, based on factors like temperature, humidity, and personal fitness and exertion levels.

Water availability is another factor. A water filter, purifier or chemical treatment (like iodine tablets) will allow you to treat water on the trail and carry less on your back. Always treat water, even if it looks clean, unless you want to experience Giardia or other unpleasant bugs.

    Tips:

  • Drink your fill and top off water bottles before starting out from the trailhead.
  • Leave extra water in the car for your return.
  • Monitor hydration through urine output—volume, clarity, and frequency should remain normal. Clear and copious is a good sign.
  • On longer, more strenuous hikes and backpacks, sports drinks and gels help replace electrolytes.
  • Dry air dehydrates you faster in winter.
  • Have a way to melt snow for water in winter conditions.

Have tips or suggestions for this essential? Share them with us.

Read the full "10 Essentials for Backcountry Travel".