We try to get to the Trenton festival each year, usually its right around the same time as the Wyandotte festival. We always take a stroll down by the river there, if for no other reason to get a break from the crowd.
The booths are well stocked with all sorts of gems including personalized storied so we ordered a personalized story for James which they had finished before we left for the day.
They have also have an area of games for the kids which James enjoyed and he always falls asleep with a helium balloon by days end.