Published on September 14, 2026
The City of San Marcos invites families to put on their costumes and celebrate the return of the Halloween Spooktacular on Saturday, Oct. 3, from 4 to 8 p.m. at Williams Barn in Walnut Grove Park, 1950 Sycamore Drive.
The free event will feature a Halloween dance party, costume parade and crafts in the barn. Families can also enjoy Halloween games, activities, treats, prizes and inflatables for $1 per activity, while supplies last. Food and drinks will be available for purchase from an on-site food trucand families are encouraged to come dressed in their favorite costumes.
For those who want to plan ahead, families can pre-register online for a $10 Activity Bundle, which includes 10 activity tickets, with one ticket per activity, plus a free mini trick-or-treat tote while supplies last. Pre-registration is optional, and walk-up activity tickets will be available at the event for $1 each.
Halloween Spooktacular Saturday, Oct. 3 | 4-8 p.m. Williams Barn at Walnut Grove Park 1950 Sycamore Drive, San Marcos