Last summer was feeling crazy enough to walk to a lake about 15 miles away, starting in what seemed the heat of the day 100 F but it was a dry heat at least. I took a hat with me to swat horse flies away and for some shade... 4hrs. to get there 6-7hrs to get back at 11:00 at night. I was somewhat unprepaired for the harsh reality of it all. About halfway there feet started to sweat alot and could feel calouses forming so took frequent breaks to air out and rest my feet. Found lots of blackberries on the roadside, ate as many as I could really picked me up even ran a bit on the downhills. Found a natural spring off the roadside too at the halfway point backtrip(amazing I didn't notice it before,guess I wasn't thirsty enough), very cool water drank as much as I could and cooled my feet for about half an hour on the way back. By sundown there was no moonlight at all just my luck, was kicking gravel in front of me hoping to ward off copperheads after awhile I didn't even care, for the last pitchblack mile on a country road way the hell out there. Feet were totally worn out moving on instinct the last mile, had almost completely stopped sweating about 3 miles back heat exhaution was probably creeping up on me. Took 3 days to recover from muscle fatigue probably from dehydration. As hard as it was I'll do it again it really makes you feel like you accomplished something. If you ever try something like this make sure you wear the right shoes socks and shorts, if you get callouses on your feet you are doomed, and if your shorts rub together between your thighs when they sweat you are doubly doomed.