I'm going to be in Orland Park next month and will be on a pretty tight budget. I'm looking for the best free and inexpensive things to check out! I love the outdoors, art, museums, you name it. Thanks!
Best hiking is at Swallow Cliff Woods - great huge stairs for workouts too. If you'll have access to a bike, there are some great trails - the Cal Sag trail is newly paved and beautiful, and Old Plank Road Trail a little further south is a great biking path too.