9 Awesome Outdoor Workouts That Are Effective and Free of Charge

For many people, hitting the treadmill feels a whole lot easier than pounding the sidewalk. You don't have to be tethered to the treadmill to get your favorite form of cardio in, and you can achieve the same thing and even build your endurance by hitting the streets for free.

If you're intimidated, start with run-walk intervals in the park or around your neighborhood, and slowly build your pace and distance.