We had reserved campsites and were told then and in person, plus noticed many signs on the way to our campsite about the NO ALCOHOL rule in this campground. Imagine our surprise when the huge group of young people across the road from our campsite had a party in full swing, with tiki torches, music, liquor bottles, and even a beer funnel in plain sight. They were even kind enough to offer use of the funnel as we walked past. They partied hard until at least 1:30am, well past the 10pm quiet time. And despite the rule of 2 cars max, there were 5 cars jammed into the driveway & road. Never saw even one DNR truck or ranger drive past. Beautiful park, but apparently there is no staff to enforce any of the rules. The bathrooms in the shower building were nice, however the rest of the campground had to make do with portapotties - most of which were well past emptying time. Some showed evidence of bad aim, another had a diaper stuffed in it, most were filled almost to the rim. If this is the "jewel" of the Illinois park system, they should be ashamed. We will not be back.