Julianne Hough could have very well have been mistaken for the female version of Rocky when she was spotted working out in Miami recently. While filming Footloose and Rock Of Ages, the star took time out for strenuous outdoor boxing sweat sessions. What makes the dancer-singer-actress a true winner is her willingness to go the extra mile -- or in this case, run the extra mile -- during morning beach jogs and jumping on her bike for fun cardio. During her business trip, Hough took up a variety of regimens to not only enjoy South Beach, but to also stay in shape. With summer in full swing, consider infusing a few hours of exercise into your next vacation: Rent bikes for the day, take a horseback riding lesson or go on a nature hike for outdoor cardio. Whether you're doing stair jumps like Hough or simply swimming laps in the hotel pool, get out there and enjoy a summer regimen.