Yokuts Park hosts 2 trails around Halloween. One for younger kids, Storybook Land, and one for older kid, Haunted Trail. This year it's on October 28th and Storybook Land opens at 5:30 and ends at 8:30 while the haunted trail starts at 6 pm and ends at 9 pm. They also have entertainment, costume contests and food booths. You buy your tickets at the park when it starts.
Last year was the first year that I took my kids to it and we had a BLAST! The lines are long if you wait to late so go early and you'll also get a good parking spot. I know this because I waited to long to go last year, you can bet we'll be there early this year! Be sure to take your camera. As a parent of 3 adorable boys, my camera is usually glued to my side but last year I forgot to take it... and in Storybook Land there are LOTS of photo opportunities. My kids really enjoyed it and I can't remember how much the tickets were but they were under 5 per person.