Located in Oak Cliff, Kiest Park's 2.8-mile path is perfect for anyone looking to get fit without paying a gym membership. It winds through dense woods that provide shade during the hottest summer days and features several stations for modified push-ups, sit-ups and climbing exercises. Best of all, your eyes will not get bored. There's the pretty scenery, sure. But even better are your fellow exercise enthusiasts. You're guaranteed to see at least a couple of hotties every time, but our favorite people-watching sport is looking for the mysterious trash-bag people. For some reason, many of Kiest Park's walkers and joggers favor a strange outfit that looks exactly like an inflated trash bag. Often clinging to the material are beads of moisture that might be distilled sweat. Are these bizarre outfits intended to increase weight loss through excessive perspiration? Is their aerodynamic inefficiency intended to increase resistance? Or are they simply fashionable among middle-aged Hispanics? Figuring it out will give your mind something to do as you torture your body with exercise.