Festivals in Castro Valley, CA
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San Francisco Dragon Boat Festival Friendship Races
Sat, Jun 20, 8:00 AM + 1 more
San Francisco · Lake Merced
San Francisco Dragon Boat Festival Friendship Races
Sat, Jun 20, 8:00 AM + 1 more
San Francisco · Lake Merced
JRMF Math Festival at Hercules Library
Sat, Jul 25, 1:00 PM
Hercules · Hercules Library - Contra Costa County Library
JRMF Math Festival at Hercules Library
Sat, Jul 25, 1:00 PM
Hercules · Hercules Library - Contra Costa County Library
Rock Balancing Gathering San Francisco 19th Edition
Sun, May 2, 1:00 PM
San Francisco · Crissy Field, near Warming Hut Park Store
Rock Balancing Gathering San Francisco 19th Edition
Sun, May 2, 1:00 PM
San Francisco · Crissy Field, near Warming Hut Park Store
Father's Day Celebration Saturday | June 13, 2026 (Valley Fair)
Sat, Jun 13, 1:00 PM
Santa Clara · Macy's Westfield Valley Fair
Father's Day Celebration Saturday | June 13, 2026 (Valley Fair)
Sat, Jun 13, 1:00 PM
Santa Clara · Macy's Westfield Valley Fair
This is Hallo-Wine: A Nightmare Before Christmas Free Family Market
Sat, Sep 26, 1:00 PM
Rodeo · Four Fools Winery
This is Hallo-Wine: A Nightmare Before Christmas Free Family Market
Sat, Sep 26, 1:00 PM
Rodeo · Four Fools Winery
Frequently asked questions about Castro Valley
What are the best festival events to attend?
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