Area residents typically visit Izaak Walton Preserve to hike, bike and fish. In three weeks, there will be another reason to visit: the art.The preserve will host an art show, "The Nature of Art," in Senior Hall Lodge from 10 a.m. to 4 p.m. Saturday, Oct. 15, and from 10 a.m. to 2 p.m. Sunday, Oct. 16. Izaak Walton, 1100 Ridge Road, is a place to appreciate the beauty of nature, with five miles of trails that wind through prairie, woodland and around small lakes, organizers said. The . . .