Enjoy free concerts at Witwen Campground in Witwen, seven miles west of Prairie du Sac, on Saturday evenings in July and August. Grounds open at 4:30, and concerts begin at 6:30. Buy food from the concession stand or bring your own. Concerts are held rain or shine, moving to a covered space when the weather is bad. Find a full schedule and more information at the Witwen Concerts website.