Crab Feed 2026 in Martinez
2026-04-18 17:30 (America/Los_Angeles) | Martinez Refinery Clubhouse, 1635 Pacheco Blvd, Martinez, CA, 94553, United States
Join the Martinez Historical Society for its annual crab feed fundraiser featuring Dungeness crab, an Italian-style dinner, live auction, raffle, and entertainment. Proceeds support the organization’s mission of preserving local history.
Doors open at 5:30 p.m. with dinner served at 7:00 p.m., followed by a program.

Tour of the Yolo Bypass Wildlife Area
2026-04-19 09:00 - 12:00, 2026-05-17 09:00 - 12:00 | Yolo Bypass Wildlife Area Headquarters, 45211 Chiles Road, Davis, CA, 95618, United States
The Yolo Bypass Wildlife Area tours are hosted on the third Sunday of the month from October through June. Learn about migratory bird species, flood management techniques, agricultural practices, native plants of the wetlands and more! Please dress in layers as weather can be unpredictable. Registration required; more information here.

Talk Story Films: Journey in Multiple Worlds in Stockton
2026-04-19 14:00 | Filipino American National Historical Society Museum, 337 E Weber Ave, Stockton, CA, 95202, United States
Attend a screening of two short Talk-Story films at the Filipino American National Historical Society Museum in Stockton, highlighting the lives of Manong Albert Juanitas and Manang Irene Estante Revillar.
This event is free and includes light refreshments.

California Duck Days in Davis
2026-04-25 09:00 - 16:00 | Yolo Basin Foundation, 45211 County Road 32B, Davis, CA, 95618, United States
California Duck Days is a family-friendly outdoor festival featuring wetland-themed arts and crafts, live animals, nature activities, and interactive exhibits for all ages. Food trucks will be on-site, and attendees are encouraged to bring a water bottle. No dogs allowed. Parking is available in the CA Department of Fish and Wildlife back lot.

Rio Vista Community Garden Grand Opening
2026-04-25 10:00 | Rio Vista Roots Community Garden, 350 S. 3rd St, Rio Vista, CA, United States
Help build a space rooted in connection, creativity, and sustainability at the Rio Vista Community Garden Grand Opening. Paint garden beds, plants seeds, do chalk art at this youth gardening event at the community garden, located at South 3rd Street and St. Gertrude’s Avenue.

Sunday at the Museum: History Talk in Crockett
2026-04-26 14:00 - 16:00 | Crockett Museum, 900 Loring Ave, Crockett, CA, 94525, United States
Descendants of George Morrison Rolph, the first plant manager of the California and Hawaiian Sugar Refining (C&H) company, will share stories about his life in early Crockett. The free program will take place at the Crockett Museum.

Spring Fashion Show in Antioch
2026-04-29 17:00 | La Plazuela Mexican Restaurant & Bar, 400 G St., Antioch, CA, United States
Fourth Annual Spring Fashion Show includes over 40 outfits, silent auction and raffle. Tickets are $10. Visit Rivertown Treasure Chest, contact Debbie Blaisure at (510) 909-4618, or email rivertowntreasurechest@gmail.com to make a reservation or for donate items for silent auction/raffle. All proceeds benefit the Downtown Antioch Association to support events that support local businesses.
More information.

Uno de Mayo in Rio Vista
2026-05-01 16:00 - 19:00 | Rio Vista, 116 Main Street, Rio Vista, CA, 94571, United States
Enjoy live mariachi, dance performances, churros and food, and drink specials at Rio Vista Downtown Association’s Uno de Mayo, from 2nd Street to the River.

Discovery Bay Boat Show
2026-05-02 - 2026-05-03 | Discovery Bay Marina, 5901 Marina Rd, Discovery Bay, CA, 94505, United States
Boat dealers, beer & wine garden, food and live music throughout the weekend – 10 a.m.-8 p.m. Saturday and 10 a.m.-5 p.m. Sunday. More information.

Riverfront Arts Fest in Rio Vista
2026-05-02 10:00 - 17:00 | Downtown Rio Vista, Rio Vista, CA, United States
People’s Choice Art Show, Youth Art Showcase, Artist Booth, Live Music, Beer & Wine Pavilion, Fine Art and Craft Vendors, Youth Art Activities, Art on Wheels and Waves, Walking Art, Gourmet Food Trucks. For information, call 707-646-1710 or visit this website.

Learn How to Make Fermented Pickles in Benicia
2026-05-02 12:00 - 13:00 | New Harbor Community Church, 4858 E 2nd St, Benicia, CA, 94510, United States
Learn to make traditional fermented pickles starting with fresh cucumbers and salt, and leave with the jar of pickles you make!
More information here.

Delta Informal Gardeners Annual Plant Sale in Brentwood
2026-05-09 08:00 - 13:00 | Delta Informal Gardeners, 3900 Sellers Ave, Brentwood, CA, 94513, United States
Join Delta Informal Gardeners for its annual plant sale, featuring a wide selection of healthy, beautiful annuals ($5), perennials + succulents ($8), 2-3 gal plants ($12); 5 gal/specialty items (individually priced). Carts and/or wagons are encouraged to enhance your plant-shopping experience.

VENMO, local checks, or cash ONLY
No resellers
No dogs

More information.

Spring Fling Craft and Vendor Fair in Brentwood
2026-05-09 09:00 - 13:00 | Brentwood Veterans Memorial Building, 757 1st St, Brentwood, CA, 94513, United States
Explore a diverse collection of vendors for a day of shopping, creativity and fun, and enjoy a mimosa while you shop. For vendor information, email brentwoodveteransbuilding@gmail.com.

Asian Pacific Spring Festival in Locke
2026-05-09 11:00 - 16:00 | Historic Locke, 13916 Main St, Walnut Grove, CA, 95690, United States
Join the Locke Foundation for its Asian Pacific Spring Festival in Locke. Enjoy lion dances, martial arts, taiko drumming, music, arts and crafts, and food.
Admission and parking are free. Schedule here.

Jazz and Blues Festival in Antioch
2026-05-09 11:00 - 18:00 | Antioch Williamson Ranch Park, Antioch, CA, 94531, United States
Music (Deer Valley Jazz Band, Charged Particles, Frankie G and the Conviction, Stratify, MJ’s Brass Boppers), artisan vendors, food trucks, and beer and wine. Williamson Ranch Park is located at Lone Tree Way and Hillcrest Avenue. More information.

Antioch Wine Festival
2026-05-09 11:00 - 20:00 | Antioch, Antioch, CA, United States
Enjoy Antioch cuisine, live music and entertainment, family-friendly activities, craft beer and cocktails, and more at West 2nd and G streets in Antioch. More information.

Through Time and Tule: A Delta Meadows History Walk in Locke
2026-05-16 09:00 | Delta Meadows Park Property, 13971 River Rd, Walnut Grove, CA, 95690, United States
Take a trip back through time and tule with a State Parks interpreter at the Delta Meadows Park Property! Meet in the Delta Meadows parking lot at 9 a.m. before stepping back in time along our Railroad Trail.
You will hear about the various figures that have shaped Delta Meadows throughout its history, including Chinese immigrants from Zhongshan, the Southern Pacific Railroad, the rancher and millionaire George Locke, early settlers and trappers from the Hudson Bay Company, and the Junizumne tribelet of the Sierra Miwok, who inhabited the area originally for thousands of years and whose ancestor continue to live in the surrounding communities.
Learn more.

River Ready in Sacramento
2026-05-16 09:00 - 12:00 | Sacramento Marina, Ramp Way, Sacramento, CA, United States
Vessel safety checks, nautical swap meet, boat demos, photo booth, talk to local marine law enforcement and first responders, local river businesses, lifejacket giveaway, prizes. To participate in the swap meet, register with sacmarina@cityofsacramento.org. More information.

Contra Costa County Historical Society Book Club in Martinez
2026-05-16 10:30 - 12:00 | Contra Costa County Historical Society, 724 Escobar St, Martinez, CA, 94553, United States
Join the Contra Costa County Historical Society Book Club for its fifth meeting, featuring a discussion of Beneath Tangled Vines by Dan Hanel. A field trip will also take place to visit Point Molate/Winehaven.

Asian District Centennial Celebration Fundraiser in Isleton
2026-05-16 12:00 | Peter’s Steakhouse, 203 2nd St., Isleton, CA, United States
Celebrate the rebirth of the Isleton Asian District 100 years after the 1926 fire that destroyed the two blocks of Chinatown and Japantown. Event includes lunch and a guest speaker. $100 per person, payable by check to Isleton Museum, P.O. Box 933, Isleton CA 95641. RSVP by May 9 to Sharon Fong at sharonfong13@icloud.com.

Sacramento River Delta Historical Society Potluck in Walnut Grove
2026-05-19 18:00 | Jean Harvie Community Center, 14273 River Rd, Walnut Grove, CA, 95690, United States
The Annual Members Meeting and Potluck is an opportunity to share stories about Delta foodways, and food!
The organizers invite you to bring:

A dish connected to your Delta roots
A family recipe (written or remembered)
A story about someone who grew, harvested, packed, processed, transported, cooked, or served food in the Delta
A photograph, menu, ledger, or artifact that helps tell that story

Sip and Stroll in Oakley
2026-05-21 18:30 - 20:00 | Big Break Regional Shoreline, 69 Big Break Rd, Oakley, CA, 94561
Join Big Break for a monthly social hour featuring themed mocktails, hors d’oeuvres, an art activity, and an evening stroll in the park. This drop-in program is held every third Thursday of the month and meets at the Visitor Center.
The event is free and open to adults ages 18 and older.

Sunset Bat Flyout Paddle in Galt
2026-05-29 18:30 - 20:30 | Cosumnes River Preserve, 13501 Franklin Blvd, Galt, CA, 95632, United States
Join Wild Spirit Recreation for an evening paddle at the Cosumnes River Preserve to watch bats emerge at sunset. Guided by experienced California Naturalists, the trip offers an opportunity to connect with nature and experience the landscape from the water.
A limited number of boats are available, and participants may bring their own watercraft. The event takes place on multiple dates from May through September.

World Fish Migration Day at the Cosumnes River Preserve in Galt
2026-05-30 09:00 - 14:00 | Cosumnes River Preserve, 13501 Franklin Blvd, Galt, CA, 95632, United States
Celebrate free flowing rivers and migratory fish! Join communities from around the world on World Fish Migration Days. View flyer (PDF)
Enjoy a day flowing with free educational activities for the whole family
• Watershed Stewards Program restoration project
• Fish on the Floodplain nature walks
• Salmon Life Cycle bracelet making
• Fish hats, Fish printing, Fish games, and more
• CA Fly Fishers Unlimited demonstration fly tying
• US Fish & Wildlife Service displays and activities
• CA Department of Fish & Wildlife displays and activities

Biodiversity Hike at Delta Meadows in Locke
2026-06-06 12:00 - 13:30 | Delta Meadows Park Property, 13971 River Rd, Walnut Grove, CA, 95690, United States
Join a State Parks interpreter for a Delta Meadows Biodiversity Hike. Learn about native and invasive species, the importance of biodiversity, and how the history of the Delta Meadows property has influenced the plants and animals that live there today.
Meet in the Delta Meadows parking lot at noon before departing on a 1-mile hike that will take an hour and a half to complete. Please wear comfortable shoes and appropriate clothing for the weather, and remember to bring water and a snack. Please also be aware that there are no public restrooms at Delta Meadows. Admission to Delta Meadows and participation in the program are completely free!

Hercules Cultural Festival
2026-06-07 11:00 - 18:00 | Hanna Ranch Park, 2480 Refugio Valley Road, Hercules, CA, United States
This free community event features martial arts, cultural dance groups and live music. More than 50 vendors and exhibitors will be on site, including 17 food vendors serving everything from Shaw’s Texas Style BBQ and Hella Bomb Tacos to Sushi Obsession, Kona Ice, and Menchie’s Dole Whip Floats. Margaritas and beer will also be available for purchase. More information.

Explore Historic Locke as Part of State Parks Week
2026-06-12 11:00 - 12:30 | Locke Boarding House, 13916 Main St, Walnut Grove, CA, 95690
As part of California State Parks Week, explore the fascinating town of Locke, California, on a walking tour with park staff and learn about the United States’ only remaining rural community built by and for Chinese immigrants. Walk the Main Street and immerse yourself in Locke’s unique architectural setting while listening to stories of the past.

Fishing 101 at Brannan Island near Rio Vista
2026-06-13 09:00 - 10:30 | Brannan Island State Recreation Area, 17645 Highway 160, Rio Vista, CA, 94571, United States
As part of California State Parks Week, you can learn all about fishing! The hosts provide the equipment and expertise to guide you through the basics of fishing gear, knot tying, casting your line, types of fish in the Delta, and more. Registration is required. $10 vehicle entry fee, or free entry when you check out a California State Parks pass from your local library. Bring sunscreen, hat, and drinking water. Meet at the Brannan Island swim beach pier.

Martinez Beaver Festival
2026-06-13 10:00 - 15:00 | Susana Park, Susana St & Estudillo St, Martinez, CA, 94553, United States
Celebrate the 17th annual Martinez Beaver Festival at Susana Park! Enjoy live music ranging from Irish folk to big band, interactive exhibits including a giant mobile fish tank, rare birds, bees, and bats, and family-friendly activities. Children can earn a “Beaver Pond Totem” by learning about how beavers help water systems and painting their own tail. Adults can explore wildlife booths and learn about urban wildlife and beavers in the area.
The festival also features a silent auction with unique treasures and family adventures, and chalk artist Amy Gallaher Hall will be creating a beaver mural.
