James Castrission

James Castrission makes up the ‘Cas’ half of the renowned Cas and Jonesy adventure duo. In 2008 the pair became the first kayakers to cross the Tasman Sea. Four years later they made history by completing the longest unsupported polar expedition of all time: the first return journey from the coast of Antarctica to the South Pole and back.

James has led mountaineering expeditions to some of the most challenging peaks around the world, run numerous ultramarathons and sailed to remote destinations across the globe.

In 2013, James founded MyAdventure Group, a provider of corporate Adventure-based development programs that harnesses lessons learnt from the most hostile environments on earth to strengthen teams and develop competitive advantage in organisations.

He holds 2 Guinness World Records for his accomplishments and is highly regarded as one of Australia’s premier public speakers. He has written 2 bestselling books: Crossing the Ditch and Extreme South.

James lives with his wife, Mia, and two young children in the upper Blue Mountains.

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