In a wilderness survival situation, finding water is your most urgent priority, but knowing where to look isn’t instinctive. This guide covers 9 practical methods for locating natural water sources, including following game trails and birds, reading terrain and vegetation, collecting morning dew, and identifying water-loving trees like willows and cottonwoods. Also covers why every natural water source needs to be purified before drinking, with a breakdown of the four main purification methods: boiling, filtration, chemical treatment, and UV purification.
Finding water in a wilderness survival situation isn’t always obvious, especially if you’ve never had to think about it before. But if you’re out there with an empty canteen and possibly lost, water is your most urgent priority. The human body can go weeks without food but only days without water, and dehydration sets in faster than most people expect, impairing judgment before you even feel seriously thirsty. These ten tips will help you locate a water source when you need one most.
This article updated June, 2026.
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Table of contents
9 Tips to Find Natural Sources of Water
- Follow game trails, if you can find them. If there are animals in the area, and there are almost always critters around, they need water just as much as you do. Let them do the work for you. They will almost surely lead to a water source. Generally speaking, trails that lead downhill and/or seem to converge with other trails will lead you to water.
- Watch our feathered friends. They will often visit a water source in the morning and in the evening. Keep an eye out for them flying overhead and follow in that direction. Birds heading to a water source tend to fly in a straight line and rather fast. After visiting the water source, they may fly in a more meandering type of way.
- Keep in mind that water doesn’t run uphill very well. You’ll have much better luck looking in low spots like valleys than you will by going to the top of a ridge (unless it is just for a higher vantage point).
- Look for dry riverbeds and dig down in spots where the river takes a sharp bend, concentrating your efforts on the outside bank of the bend.
- In the winter, you’ll get more bang for your buck, so to speak, by melting ice instead of snow if you have the choice. There is an awful lot of airspace in snow and what seems like a lot in the pot ends up being not so much. Either way, avoid just popping the frozen water into your mouth and letting it melt. Doing so cools down your core temperature, which isn’t a good thing. Instead, put the ice or snow into a plastic bag or other container and keep it under your coat, letting your body heat melt it first.
- If you have a garbage bag or other large plastic bag, tie it over the end of a leafy branch, tossing a small rock into the bag first. The rock will weigh down a corner of the bag. Over the course of several hours, water will condense out from the leaves and drip to the bottom of the bag. Either remove the bag, being careful to not spill any of the water, or cut off the corner and then tie a knot in the bag to keep it working for you.
- Despite what you may have read elsewhere, solar stills aren’t usually worth the effort. A solar still consists of a large hole dug in the ground with a plastic sheet stretched over the top. A rock is placed at the center of the plastic and a container placed in the hole directly underneath. Over time, water will condense on the bottom of the plastic and drip down into the container. It is a lot of work to dig that hole and the water you’ll get for your efforts is often minimal. But, it is something to consider if you’ve run out of all other options.
- Look for water-loving trees. Certain trees and plants grow almost exclusively in moist soil near water sources. If you spot willows, cottonwoods, sycamores, or maples, there’s a good chance water is nearby, often within a short walk in the direction the vegetation is thickest. These trees need consistent moisture to thrive, so where they grow, the water table is close to the surface even if a stream or pond isn’t immediately visible.
- Watch for a lone cloud in a clear sky. A small, stationary cloud hanging over one spot in an otherwise clear sky is worth investigating. It can indicate a body of water below. Lakes and ponds generate enough evaporation to form and hold a small cloud even in moderate wind. It’s not a guarantee, but in open terrain with good visibility, it’s a directional clue worth following.
Your Personal Self-Reliance Roadmap — Free Printable
How Do I Purify The Water Once I Find It?
Finding water is only half the job. Most every natural water source should be purified before you drink it, no matter how clean it looks. A clear mountain stream can still carry Giardia, Cryptosporidium, and bacteria that will make a survival situation significantly worse. Your best options before you take a drink:
- Boiling is the most reliable method if you have a container and fire. Bring water to a rolling boil for at least one minute (three minutes at high altitude) and let it cool before drinking.
- Filtration using a portable water filter like a Sawyer Squeeze or LifeStraw removes most bacteria and protozoa. Lightweight and worth keeping in any pack.
- Chemical treatment like iodine or chlorine dioxide tablets are compact and effective, though they take 30 minutes to work and won’t remove all parasites on their own.
- UV purification with a SteriPen uses ultraviolet light to neutralize pathogens quickly and effectively, but requires batteries.
When in doubt, use more than one method. Filter first to remove debris and then treat chemically or boil. For a full breakdown of water purification methods, see our complete guide to water purification.
Final Thoughts
Water is a critical element of survival. While our bodies could last up to a few days without hydration, you really don’t want to be a test case. Any time you’re out in the wild, make note of water sources as you travel. Always drink and gather water when you can.
Frequently Asked Questions
Learn methods to purify the water you find here.
Not without processing it first, and in a wilderness survival situation, desalination is difficult without the right equipment to distill it. Drinking saltwater without desalinating it accelerates dehydration, not relieve it.
The most practical low-tech method is distillation: boil the saltwater and collect the steam on a cloth or capture it in a container, allowing it to condense back into liquid. The condensed water is salt-free. It’s slow and labor-intensive, but it works. Some survival kits include small hand-pump desalination devices designed specifically for this purpose, worth having if you’re near coastal areas or open water. After desalinating, still purify the water before drinking.
When collecting water from a natural pond, draw from below the surface and above the bottom. If you have the choice, avoid stagnant pools with algae or lots of foam, as the excess algae can indicate contamination. Read more about using pond water as part of your overall survival strategy.
While anecdotal evidence of water dowsing does exist, do you want to bet your survival on it?
Originally published February 15, 2015
Identify the types of trees that tend to grow in moist soil around lakes, rivers, and streams such as cypress, willows, cottonwoods, sycamores, and maples. http://www.gardeningknowhow.com/ornamental/trees/tgen/wet-soil-trees.htm
http://www.weekendgardener.net/tree-information/wetsoil-090809.htm
https://amongthestatelytrees.wordpress.com/2013/04/16/the-top-75-wetland-plants/
Good advice, especially about discarding the solar still, except as a last resort. Thanks for the article, for this is one that just might save someone’s life after teotwawki. God bless.
Nice to see more and more writers figuring out that solar stills are a waste of time. I’d suggest everyone build at least one to realize how much effort – and moisture – is used.
Here’s a post from survival expert Peter Kummerfeldt about finding water in the desert https://www.survivalcommonsense.com/peter-kummerfeldt-finding-water-in-the-desertfeed/
I have never made a solar still (living in MI its easy to find water) but I noticed when describing the still you didn’t mention about placing vegetation around your collection pot. Have they changed the way to make the still over the years?
This article appears to be missing — even with a search for the author’s name.
A small cloud hanging over one spot in a clear sky almost always is a lake below.
the cloud will hold even in moderate wind.
Even though the city water pipes don’t have pressure there still may be a lot of water in the pipes.
One pipe we just worked on had 1.5M gallons between valves. that was deep,
most city water pipes are shallow, 4 feet.
You might even try pulling up sword ferns that seem to grow everywhere. The long ones that look like, well swords. Collect the round noduals they are a source of water storage and edible.
I have been told that peeing in the hole before you set up the solar still, it will be much more productive as it will pull pure water vapor out of the moisture. This is the closest I think I’d come to pulling a Bear Grylls.
Great tips there!! I didn’t have an idea that early dew can become a source of water.
Thank you for sharing.
Awesome tips! Liked the idea about discarding the solar still. Thanks for sharing 🙂
I am very curious about fresh water scarcity in the world. Some of the countries are facing this problem and will face more next in the upcoming years. Do more afforestation can solve this problem?