Re: Good Camping sites around Cincy?
My wife's family lives near Winton Woods. Not a bad place right in the middle of the city. The lake is pretty nice with a nice jogging track around it. There's a couple nice restaurants just down the road in the Glendale neighborhood, and a pretty nice golf course attached to the park, called "the Mill Course".
You could also camp out by Kings Island and do the amusement park thing on days you aren't doing baseball.