If the window displays and store promotions weren't enough to clue you in, it's time you knew: Valentine's Day is upon us. And while a nice bouquet of flowers never hurt, it might be time to mix it up. Whether you're part of a fitness-minded couple or you're just feeling an extra burst of energy from all those heart-shaped brownies, we've got HuffPost Healthy Living's top picks for the most romantic activities for couples, including suggestions from some of the top names in fitness, like Bob Harper and Tracy Anderson.
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