During college in the 1960s, I taught boating at a boys' camp in the glacial Kettle Moraine area west of Milwaukee. It was fine during the week, and I felt safe supervising 30 kids in boats on our lake.

But on the weekends, the people from Chicago came up with their speedboats, and the lake was way overcrowded. The waves came up, and there was no way it was safe for kids in canoes and rowboats.

-Joe-