Dunc Wilson has seen quite a bit of New Zealand - at least 11,000 km - from two wheels. In 2015 he embarked on an epic adventure to cycle the New Zealand coastline and became the first person to do so, in 240 days.
He's documented his travels - the sore legs, multiple punctures, near misses, missing bridges, paper roads and kind and quirky characters he met - in a book called The Big Loop: Biking Coastal New Zealand. Kathryn talks to him about his motivation.
