The Great Big BOO — Gilroy, CA
🎃 Gilroy, CA · Halloween 2026 The Great Big BOO — Gilroy, CA The Great Big BOO brings Halloween to Gilroy for the 2026 season — september 25 – november 1, 2026 (fridays, saturdays, sundays; closed oct 10) at Gilroy Gardens. 🎯 GILROY, CA📅 September 25 – November 1, 2026 (Fridays, Saturdays, Sundays; closed Oct…