Parky's Farm Halloween Nights
I volunteered at this event a few years ago (who could pass up the opportunity to make a fire and smores with kids). If you live in the Cincinnati area, I highly recommend taking your young child to this event. They have a lot of fun activities and performers (nothing that'd scare them).
Come join us for this non-scary, family-friendly Halloween event! See tens of thousands of animated and decorative light displays, take a hayride through the woods, make S’mores by the campfire, and experience the many activities offered for the whole family. October 6 is Sneak Preview Night with half price admission!
http://www.greatparks.org/halloween/tickets-activities.shtm
