Truthfully, it's not that hard to get your butt off your couch to jog when it's 75 degrees and sunny outside.But when it's 35 degrees, cloudy—and windy? Oh hell no.Before you settle in for a long winter of boring treadmill runs (or, you know, not running at all...), consider trading your go-to outdoor workouts for these winter activities that burns mega calories and rev your endorphins just as much as your usual warm-weather routines. Try this workout and reap the benefits! ~ Berceste