Eco-challenge: what it’s like to train for the world’s toughest race in Fiji 2019. Join Sonja Weick, from team Iron Cowboys, as she shares her top strength training tips to prepare her for The World's Toughest Race Eco-Challenge Fiji, a hit series on Amazon Prime, hosted by Bear Grylls. This Ironman ultra athlete shares how she and her trainer prepared both physically and mentally for her to survive this multi-sport endurance adventure race. CJ Kobliska, Head Programmer at Gymnazo, shares his best tips for training endurance athletes, specifically adventure race preparation!