This is a great place to take the kids. It's $20 for a one time pass or $50 for a season pass. The season pass lets you go unlimited times until January 6.
Before you start there are some Boy Scouts set up selling hot cocoa, coffee and snacks. We got some hot cocoa which was perfect since you will be driving with your windows down.
We had to pull over a bunch of times cause a bunch of cars who weren't taking pictures were cruising through pretty fast and I didn't want to slow them down.
This is the first time I've been to something like this and I think everyone with kids should check it out.