Treat your little ghosts and goblins to a day at The Great Pumpkin Fest at Keehner Park. Kids and families are invited to this free event on Saturday, October 14 from 2-9 p.m. at Keehner Park. The Great Pumpkin Fest includes a costume contest, horse-and-wagon rides, petting zoos, a not-so-scary haunted trail, crafts, games and more. online. WestChesterOH.org