Mark Kalch has made it his mission to paddle the longest river on each of the seven continents - seven rivers on seven continents. He has already completed descents of the Amazon, Volga and the Missouri-Mississippi River. These journeys have taken Mark through a wide variety of environments, some of them very wild and remote... This first appeared on Paul Kirtley's Blog. If you like my content, CLICK HERE to get 20 free videos today.
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