Man, I've been out of, or low on, water more than a few times, but never a whole day. That particular predicament sounds awful. Headed to the Grand Canyon later this year and I'm already playing out the "no water" scenarios in my head.
http://www.foxnews.com/us/2015/06/03...r-running-out/
http://a57.foxnews.com/global.fncsta....jpg?ve=1&tl=1