The annual Halloween celebration is back at the Erie Zoo, ZooBoo officially started Friday night.
Around 5,000 people were there for the kick off.
It's a chance for kids to dress up in their Halloween costumes and Trick-or-Treat at the Erie Zoo.
As always, they can also check out the animals and take part in some Halloween activities.
ZooBoo will continue nightly from 6PM to 9PM until October 30. For tickets and more information, you can click here