In 2017 in Fairbanks, Alaska, Nicolas Vanier did his last sled dog race, the Iditarod.
By minus 40 degrees, it rallies Anchorage (in the south-east) to Nome (in the north-west), that is to say 1200 km of race at the rate of 200 km per day.
Guest: Nicolas Vanier, writer, photographer and director.