There was a documentary a couple of years ago on PBS about it. The thing people were saying is to have good shoes, and even then people's shoes were wearing out. I remember there was a part where there's this little store in the trail, kind of isolated, and the thing people do there is try and eat an entire box of ice cream (I don't know, is that a half gallon or a gallon?) A few people went as a group, but the group ended up splitting up because some people quit.
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