Join the community for a free 150th Anniversary Grand Finale on Saturday, December 13, 2025 from 12 PM–5 PM at Third Street Promenade! Celebrate 150 years of Santa Monica history with live music, art activations, cultural displays, and family‑friendly fun as the city wraps up this milestone year of festivities. It’s a vibrant community festival honoring the past, present, and future — and everyone’s invited!