Details for the Winter Challenge can be found at:
https://www.winterchallengestas.com
The Winter Challenge and Summer Survival multisport events were run by Endorfun between 2007-2015.
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Details for the Winter Challenge can be found at:
https://www.winterchallengestas.com
The Winter Challenge and Summer Survival multisport events were run by Endorfun between 2007-2015.