Spooky Pooch Parade at Chicago Botanic Garden is October 201 from 11am to 1pm, dogs are allowed in the Chicago Botanic Garden costumed in a parade to celebrate Halloween. There is a costume contest, judging and an award ceremony. Tickets in advance are $20. Afterwards, $25. Ticket price is per dog. Parking is $25 per car.  Rules

In addition to the parade, activities include the costume contest-costume categories include Best Costume Overall, Best Dog/Owner Costume, Best Puppy in Costume for dogs ages 1 and under in people years, Best Senior in Costume for dogs ages 10 and older in people years, and Best Horticultural Interpretation.