Children's activities, fishing, food vendors, live music and other events will be available, and an arts and crafts activity also will be taking place at the Carroll County Public Library, 136 Court St., from 1 to 4 p.m. in conjunction with the event.A ribbon-cutting for Carrollton's new Riverwalk will take place at 3 p.m. with local officials and state dignitaries on hand for the event.