Springbook Prairie in Naperville is a wonderful place to go for a walk, or run for that matter. If you want to go around the main loop it’s about five and a half miles of flatness and some rolling hills.
There was a morning I went for a walk early as the sun was rising, and the dew was still on the prairie. A great way to start your day.
(Picture from Springbrook Prairies Forest Preserve, Naperville, IL. August 23, 2013)