Exclusive interview: worldwide walker Jason Lewis

Jason Lewis set out to cross the world using nothing but his own muscles - walking, rollerblading, kayaking, pedalling. He thought it might take him three years; it took him 15. When he returned to Blighty, Country Walking's Nick Hallissey caught up with him and together they set off for the Ridgeway in Buckinghamshire to find out what the whole experience was about, how it changed him, and what he might do next...

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