Presenting our list of Tough Mudder’s badass additions this year—plus three new obstacles guaranteed to kick your butt.
Balls to the Walls
WHAT IT IS: Not the gym class activity you might remember, this 15-foot climb and descent is more like Navy Seal training. Participants use the face of the wall to plant their feet while using their arm strength to pull themselves up and over it—crushing any fear of heights in the process.
SKILLS YOU NEED: Upper body strength, hand strength, agility
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