Got the guts to enter? Presenting our Men's Fitness Survival Guide to Tough Mudder's most intense challenges — loaded with insider-approved strategies to get you through America's toughest obstacle course.
This obstacle works your abs raw. Slide on your belly through a freezing pool of blue water (no mud this time, thankfully). Electric shocks and live wires dangle overhead. Go any higher than knee height and live wires will singe your skin sending electricity volts—not so high as to do any real harm—that’ll wake you up and stand your hair on end. And ironically enough, if you manage to avoid the shocks, this obstacle can feel like a refreshing swim.
Hint: Use your core oblique muscles. Move side to side through the water like an eel as you avoid the shocks. Don’t look up.