I'm looking for Halloween Things to do in Michigan for Kids, ages 11 & 12, Metro Detroit/Ann Arbor area?

We were going to go to Greenfield Village but they are sold out, and thought about Cranbrook but we'd be taking a chance at them being sold out as well, since we didn't get tickets ahead of time. I have my 11 n 12 yr old grandchildren with us and we want to do something 'festive' and fun! I think they are a little too old for most things at Wiard's Orchard. Anyone else have any ideas for Oct 25? I live in the Ann Arbor/Ypsilanti/Canton/Belleville/Romulu… area but am willing to travel up to an hour, we've considered Crossroads Village in Flint but it's suppose to rain there all day!