Enjoy pain? Exhaustion? Hypothermia? Then the World’s Toughest Mudder is your beat. Or maybe you'd rather claw your way to the top—with a bevy of fit females—at an indoor climbing gym? From insane fitness competitions to the iconic New York City Marathon, you won't run out of ways to test your physical and mental limits this November.

Scattered across the United States, these thrilling, adventurous activities are guaranteed to get you pumped—and help you keep off that holiday weight—this season.