Short drive from Chicago (3 hours?) and you are in lush forest. You have to pick the right campsite or you will have no cover and big campers on either side of you. We had two campsites right next to each other and backing into the woods.  Went on a fun canoe trip right down the road, which was fun.  There is an odd (but fun!) Key West themed bar/resturant very close to the park entrance.  The hiking is great in the area near the lodge.  I'd go back to the area and maybe try a different loop as we were near the entrance which had a lot of traffic.  Well maintained park with very clean bathhouse.