For someone that lives in Chicago, this park presents a decent option for a a weekend getaway and an ok hike. You can extend hiking by checking out Matthiessen State Park, right next door. The campground is always super busy and booked. You literally have to reserve 11 months in advance. Starved Rock has about 13 miles of hiking trails, i believe. Check before you go, as the trails are easily flooded and some of them may be closed. I went late in August last year, and there was very little water, the waterfalls were mostly dried out, and people were hiking in the river beds. Dog friendly (leashed). Campground has decent sites, some in the woods, more private, some more open. The only drawback is that it's so hard to get a reservation.