Gilroy · Friday, September 25, 2026

The Great Big BOO! at Gilroy Gardens

The Great Big BOO! at Gilroy Gardens on Friday, September 25, 2026 at Gilroy Gardens Family Theme Park (Community). Cost: $$. Best for: toddler, preschool, school-age, tween.

When

Friday, September 25, 2026

Venue

Gilroy Gardens Family Theme Park

City

Gilroy

Category

Community

Cost

$$

Age bands

toddler, preschool, school-age, tween

Event page

www.gilroygardens.org/halloween

The Great Big BOO! family Halloween festival at Gilroy Gardens: trick-or-treat trail, live show, costumes, and the Downtown BOO Alley. Runs weekends from September 25 through the Halloween season — confirm dates on the park's calendar. Park admission required.

Plan a day with FamHop Event details

This is an annual San Francisco Bay Area tradition — see the The Great Big BOO! at Gilroy Gardens annual guide.