Niles Riverfest returning in August By: Matt Nagy Photo Courtesy: Niles Family Fun Fair and Music Festival Facebook page BERRIEN COUNTY, Mich. -- The Niles Riverfest will be hosting this year’s festival from August 5 through August 8 at Riverfront Park and Plym Park. Rides, food vendors, and a carnival will be available at Plym Park while live music, food vendors, and crafts vendors will be available at Riverfront Park. Admission will be free for the festival at both parks for all four days. To view the festival's hours, learn about the musical talents, and receive a wristband coupon for the rides, visit the festival’s Facebook page.