I got certified in Pearl Lake and at Lion's beach in Janesville. Both of them were really boring, and only good for learning. I have a friend who dives Devil's Lake in Baraboo, but says it's pretty dull. He just goes for the heck of it. Some other folks dive Lake Monona in Madison, but usually only to find the occasional "trinket". Basically, around here , the diving sucks--unless you dig cold water diving (which I don't do), then supposedly there are some killer wrecks in Wisconsin.