I met an interesting person in Joshua Tree NP…

Justin,

Water needs vary by person. I have lived in the lower desert for over 30 years. I live close to JNP, and view it as a higher atitude place to cool off. I can hike in extreme heat. I am rather thin and require a lot less water than most people.

However… lack of water kills. Heat exhaustion can sneak up on you. In the desert, especially in the warmer times of the year, it can be dangerous without enough water. I always carry more water than I need. My wife probably consumes twice as much water as me on a day hike, and she is a lot smaller.

It is best to drink a little water frequently, rather than waiting to tank up. In high heat, lightweight long sleeve shirts and long pants do help reflect heat and reduce evaporation.

I am pushing 60 and could easily hike 5 miles with no pack in 70 degree weather (low humidity) without water. I could probably push it to 10 miles with no ill effects at all. But a twisted ankle, a wrong turn and disaster bekons. During the past 30 years, I have hiked all over JNP doing both day trips and extended ones. I always take water, no matter what the distance is. And on some day hikes I don't drink any water. But it is with me just in case.

In the summer I often walk to the post office (6 miles round trip) in triple digit temperatures (115 F is not uncommon), with no water.

Over the years, I have run into several "old timers" who have been wandering around the deserts for decades. They suck on pebbles to trick their body (mind?) into thinking they are not thirsty… of course this is really just an old wive's tale. They often carry too little or no water. But most of the wanderers I run into carry water and take salt tablets regularly. I still see a lot of old canvas/felt covered canteens slung on their shoulders. Actually these are some really interesting people. Usually they are carrying prospecting gear, and are relics from a era long, long ago. Many of these folks do know where the springs and seeps are located. But these are not always reliable sources of water.

Bottom line: if you hike in the desert you better bring plenty of water unless you are 100% sure there are sources close by.

> high 70's
That's about 24 C, which is not very hot.

In dry conditions we find temperatures below 90 F to be quite manageable. When it gets over 100 F it is starting to get a bit hot. We have been walking in those temperatures.

I suspect he was just used to those conditions. Maybe he lived somewhere nearby.

Cheers

People acclimatize.

When I hiked the PCT last year, some hikers in Southern California would drink as many as 8 liters of water a day. They were usually from the Midwest or the east coast. I am from Southern California and I usually drank about 3 liters but carried 4 or 5 sometimes.

I know people who are like that man you met who claim not to need water when they hike. Some of these people are very accomplished hikers. I even met a man on the PCT (Nimblewill Nomad) who claimed to carry no more than 20oz of water at any time, including the true desert. He said that much of our heavy gear represented an insecurity we had. Even our food and water.

Since I carried up to 2 more liters of water than I needed, water is clearly an insecurity I have.

Interesting subject. I spent 21 days with no food or water in the jungles of Kauai. While I obviously foraged food and water everyday I could easily go half a day without finding water. Even in the wettest spot on earth it was in issue. While it was quite cool in the high lands in the lower elevations were very hot and humid and the sun was relentless while we were exposed to it. I was almost always in some state of dehydration but it seemed to bother me less as time went on. As for food all we had was fresh fruit. It was some of the hardest hiking I have ever done but a trip of a lifetime. Ali

I think the Camelback/Sportbottle Generation is a bit over the top. Too many people who are never without water. I sat in a meeting the other day and watched a colleague take a small sip every couple minutes. This was indoors by the way. Many of these folks also claim that consuming caffeinated or alcoholic beverages cause net dehydration.

Dehydration kills, but it isn't instant. Literature on the subject often talks about problems starting after a 5% drop in body mass due to dehydration. For me that would be 4 liters.

I have always used the concept of hyperhydration when water is available combined with moderate drinking in between. Whether it is backpacking or working in the desert, I tank up evening and morning then consume much less during the day.

Backpacking I seldom carry more than a liter of water unless I'm planning to camp dry. I do admit to foolishness one time when I hiked 25 miles from the Sierra crest to the Owens Valley floor with only a liter.

Your body adapts as well. One summer break I went from college on the northern California coast to my summer job near Death Valley. Temps on the coast averaged under 60, while the first week in the desert every day was at least 105 in the shade. I had to take it easy, limiting my exertion, drinking frequently, and taking salt tablets. Three weeks later the temps were up around 115 and I felt great working hard. I only drank morning, lunch, and when returning to the truck at the end of the day. I stopped needing salt tablets and found that my sweat left much less of a crust when it dried.

Great post and I agree tank up and travel lite. I never treat my water so its easy to fill and go. Ali

Jim,

You are correct. Our bodies do adapt, some better than others.

A couple months ago I did a 4 day trip in the Nevada desert. I carried 3 liters total for the first full three days without any real water sorces (although I knew there would be some water pockets, since it rained a lot for a couple days before I left).

At the end of day 3, I was out of water, but was able to camp on the shore of Lake Mead and replenish. The water I carried was for drinking and a little cooking. Temps were a high of around 60F and lows 20F. I really cut the supply short, but was comfortable that if something happened I could find some water.

However if the highs were in the 80s or above, I would have done this trip a lot differently.

Justin, I only have one sentence for you my broham…

"the man in black fled across the desert, and the gunslinger followed"

sounds like you met Roland Deschain
careful out there, he bleeds for noone and his conscience is a brick wall

SO much of it is mental. I don't drink as much water as I am told to, and I usually find that makes me more uncomfortable to keep up with the amount of water I really should, but I've been on trips where we had to do water hunts with .5 liters of water for a whole morning, which is probably what I would drink, maybe .5 too little, yet I was feeling surprisingly dehydrated. I'd attribute it to the fact that we were searching for water rather than having it readily available.

What we eventually found was opaque at 1.5 inches, and had tiny slimy things swimming in it. I had a sip of that, and I wasn't thirsty at all.

"the man in black fled across the desert, and the gunslinger followed"

I loved that series of books!

Would like to see a really good animated series based on them.

I've found that generally if I'm hiking distances of 12 miles or less, carrying nothing but the clothes on my back allows me to easily go without water during that stretch. If I carry a small backpack with two liters of water, I end up sweating and needing to drink that water.

Nearly every weekend I hike the 11 mile round trip to the summit of a local mountain around this area (around 2500 feet elevation gain on the way up) and never carry anything other than trekking poles. If the weather were warmer than 75 degrees, I would bring some water for this distance, though.