Take the tour. The guides are excellent and very knowledgable. If its a nice day, buy some wine and cheese, and sit in the winegarden, too. It's gorgeous!
Wollersheim Winery sits on a scenic hillside overlooking the Wisconsin River across from Prairie du Sac, WI. This national historic site is comprised of 27 acres of French-American hybrid grapes and crafts 19 regional and varietal wines. Open for tours & tasting from 10 am to 5 pm daily, year-round.