Isis and Jackrabbit, the Barefoot Sisters, hiked the Appalachian train barefoot back in 2001. You can enjoy a great interview to them in MP3 format here:

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"If you’ve ever read any Appalachian trail journals you probably have read about these two sisters who hiked the trail barefoot– turned around, and hiked it in the opposite direction– still barefoot. Isis and Jackrabbit talk about their legendary 2001 yo-yo thru-hike, their trailnames, and how/why they did it barefoot…"

Direct link to the MP3 file:

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