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He Would Walk 500 Miles: Conservation Odyssey Begins

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Paddling through the Everglades: Davis in a kayak, one of the many man-powered conveyances he'll use in his nearly year-long trek across North America.
(Image credit: Tracey Butcher, Wildlands Network.)

Look up directions from Key Largo, Fla., to the Gaspé Peninsula in Quebec, and Google maps will warn you. This route has tolls.

Tolls are one thing John Davis won't have to worry about on his journey from the southern Florida island to Canada. Where he's going, they don't have tolls. Or roads, really.

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Andrea Mustain was a staff writer for Live Science from 2010 to 2012. She holds a B.S. degree from Northwestern University and an M.S. degree in broadcast journalism from Columbia University.