Explorer Bruce Parry is embarking on yet another epic journey: down the Amazon - the world's greatest river, its largest forest, the most bio-diverse habitat on the planet and home to some of the last uncontacted tribes left on Earth.
It's one hell of a trip, as Parry travels over 6,000 kms by foot, light aircraft and boat to meet and live with tribesmen, coca growers, loggers and illegal miners.