With Colorado being the nation's leanest state, according to a recent study, we asked Anne-Worley Moelter, Boulder resident and co-owner of Movement Climbing + Fitness, how she and her neighbors do it. "The nice weather," she insists. "Plus, everything is accessible—hiking, biking, kayaking, skiing." Experts say varied workouts prevent overuse injury and allow you to beat fitness plateaus. So it makes sense that Moelter's new gym is a cross-training oasis, replete with an 18,000-square-foot climbing wall, a yoga room, plus cardio and strength equipment. Check out movementboulder.com, sure to inspire even those of us in wetter, fatter regions to mix up our regimen.