The Great Big BOO! at Gilroy Gardens

Gilroy Gardens’ verified 2026 family Halloween program brings The Great Big BOO and BOO Alley back on Fridays, Saturdays and Sundays beginning September 25, with costumes, characters, entertainment and no-scare seasonal activities. Dates: Fridays–Sundays • Sep 25–Nov 1, 2026. Hours: Evening event schedule. Location: Gilroy Gardens Family Theme Park, 3050 Hecker Pass Hwy, Gilroy, CA. Admission: Check park tickets. Pop Up LA scare level: 1/5. Review the organizer’s sensory and health guidance before booking. Confirm current availability and ticket terms on the official event page before travel.