Here’s how to celebrate and honor Earth Day 2025 all around the Bay
Cupertino’s Earth Day & Arbor Day Festival
APRIL 5. Learn about environmental issues and solutions and enjoy hands-on activities, live entertainment and food. 11am-3pm. FREE.
Library Field Park, 10400 Torre Ave., Cupertino
cupertino.gov/Parks-Recreation/Events/Earth-and-Arbor-Day-Festival
Earth Day on the Bay
APRIL 12. The Marine Science Institute hosts a variety of Earth Day events on land and sea including activities on its floating research vessel, scientific exploration stations, and more. Events start at 10am.
Marine Science Institute, 500 Discovery Parkway, Redwood City
Earth Day, Every Day
APRIL 12. Enjoy a day of fun and learning with demonstrations, hands-on exhibits and engaging activities. There’s also an Earth Day art contest where kids and adults can showcase their creativity and environmental spirit. 10am-1pm. FREE.
Foster City Library, 1000 E. Hillsdale Blvd., Foster City
eventbrite.com/e/earth-day-every-day-tickets-1261774544629?aff=ebdssbdestsearch
Earth Daze
APRIL 26. This is a local, environmentally friendly, family-oriented festival to educate and inspire students, parents and businesses to reduce or eliminate the use of plastics for the sake of humanity and planetary health. 10am-4pm. FREE.
Downtown Vallejo, Georgia and Marin streets
theeverwonder.org/earthdaze2025
Hayward Clean-up and Community Fair
APRIL 26. Clean up litter in neighborhoods throughout Hayward and enjoy a lunch and community fair at Weekes Park with sustainability themed booths. 8:30am-1pm. FREE.
Weekes Park, 27182 Patrick Ave., Hayward
Santa Cruz Earth Day Celebration
APRIL 19. Enjoy live music, face painting, food, kids’ activities, an environmentally themed fashion show and more. 11:30am-4pm. FREE.
Downtown Santa Cruz, Cooper Street and Abbott Square
Yerba Buena Gardens Earth Day Festival
APRIL 19. The festival includes live performances, a green business expo, tree planting, chalk art, ice art, giveaways and more. 10am-3pm. FREE.
Yerba Buena Gardens, 750 Howard St., San Francisco