See a diaper derby, outhouse races and mullet contest, and don't miss the butter sculptures.
In this southeast Wisconsin vacation area, the festival includes a carnival, arts and crafts fair, firefighter water fight and, on Sunday, a water-ski show followed by a lighted boat parade and fireworks.
Professional musicians, many of them world-famous, offer free classical concerts in Millennium Park's beautiful Pritzker Pavilion.
This year, seating is at 25 percent capacity and still is free but must be reserved. Tickets will be available at 10 a.m. Mondays before the event.