‘Some things are worth dying for’: Karl Bushby’s incredible 28-year walk home, through deserts, kidnappers and polar bears

The ex-soldier has marched 36,000 miles since he left Hull in 1998. He’s crossed the Americas, Asia and Europe, fallen in love, been held at gunpoint and been deported, in between nearly drowning, nearly dying of thirst and nearly being eaten. But that’s just the start of it ……

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