We spend a weekend at Potato Creek State Park. It's about 2.5 hr drive from Chicago, so we decided to give it a try. Campsites are nice, but you literally can see and hear everything your neighbor is doing. Restrooms are clean. Well maintained. Tons of biking and hiking trails. No swimming in the lake, old boats for rent, if you are lucky, and come in the morning, you will get a 15 mph motor, otherwise paddles. I assume you can bring your own kayak or canoe. Lake has a sandy beach, but warnings about no swimming. One of those overcrowded places. Lot's of wetlands to see wildlife, mainly birds. and mosquitoes. Probably will not be going there again. Little boring. We enjoyed it more on a Sunday evening, when everyone left, and we had the whole campground to ourselves. It was nice not hear people, but the sounds of nature.