I was looking and the the Michigan faire allows pets every day! They even have a petfest one weekend.

This is great news! I love pet friendly places. I know many of you are from Michigan, so I thought I would let you know about it. I live in Illinois, and it would be a 6 hour drive, but it would be so worth it! We are definately planning on going.
I usually go to the Wisconsin one every year, but was disappointed when I found out you couldnt have pets there.