What is the Tough Mudder? This is from their website...
Tough Mudder events are hardcore 10-12 mile obstacle courses designed by British Special Forces to test your all around strength, stamina, mental grit, and camaraderie. With the most innovative courses, half a million inspiring participants, and more than $3 million raised for the Wounded Warrior Project, Tough Mudder is the premier adventure challenge series in the world.
Here is a photo of those that participated!
