Need motivation to stay fit as the snow falls and temps drop? Sign up today for a challenging event next year. "Research shows that setting goals based on the activity rather than the results (like weight loss) acts as a powerful motivator," says Greg Chertok, the director of Sport Psychology at Physical Medicine and Rehabilitation Center in New Jersey.

A study in The International Journal of Sport & Exercise Psychology confirms it: People who focused on their performance were more satisfied and better able to reach their goals than those who got caught up with the outcome of the activity.

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Ready to register -- and kick your butt into gear? Choose from these 12 brag-worthy "bucket list" activities that also happen to be set in some spectacular places.

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