My wife's cousin has photos of 12-to-13" bluegills caught from Chicago Lake over 30-years ago. My wife and I camped near the public access and fished the lake roughly 5-years later and the black flies were so thick you couldn't motor across the lake because your eyes, nose, mouth and ears were packed full on the biting little monsters within seconds of accelerating the boat motor. My wife wouldn't come out of the tent and I suffered the most from infectious bug bites. Went home the next morning without a fish and a thousand bug bites. No insect repellent (not even DEET) will deter these bugs from attacking. Not a pleasant trip at all.