Saturday, October 24, 2026 · 11:30 am to 3:00 pm · Ocean Beach (Balboa) · FREE — Join us for the 44th Annual Sandcastle Classic! WHEN: Saturday, October 24, 2026 | 11 AM–3:30 PM WHERE: Ocean Beach, SF (@ Balboa St) | FREE & family-friendly Watch 100+ teams of architects,...