Simply taking your workout into the great outdoors can provide an invigorating change of scenery. You may also find that exercising outdoors offers new challenges, such as running on the pavement or a hill versus a treadmill. Group exercise classes that are held outside, like Joanna Paterson's Bodiesynergy Outdoor Bootcamp, has participants doing push-ups on park benches, core work on playground swings, and running stairs built into the natural hills of Prospect Park. It's all done with the goal of getting you fit while allowing you to be out in the elements.