Columbus Day Holiday OctOctober 8 2018 All day Share Facebook Twitter Email More upcoming events Porsches on the Plaza June 21, 2025 Sonoma Sundays in the Plaza with Music In Place June 22, 2025 Tuesday Night Market June 24, 2025 Sonoma Sundays in the Plaza with Music In Place June 29, 2025 Tuesday Night Market July 1, 2025 All events ยป