Roasted squashes stuffed with greens and vegetables

Two people standing in shallow ocean water holding seaweed, with a scenic coastline and blue sky in the background.

People attending a cooking demonstration at the California Seaweed Festival, with a chef presenting at a table with plates, and an audience seated and standing.

Group of people posing joyfully in front of a house with abstract mural art, featuring green wavy lines and painted numbers "3115 3125," and a ladder nearby.

Audience attending a presentation at the California Seaweed Festival

A rustic setting with a metal bucket, a stack of firewood, and a chalkboard sign reading 'Anything Kelps: Golden Ale with toasted rice & Sea Kelp' on a wooden table.

A group seminar with attendees seated in blue chairs facing a panel of speakers. A projection screen displays the text 'Making Good Relations, Becoming a Good Ally.' The room has a wooden floor and a podium on the left.

Person dressed as a mermaid sitting outdoors, surrounded by bubbles, with a large yellow plush toy next to them.

People on a boat with an American flag, river, and trees in the background.

A ferryboat on a calm blue river under a clear blue sky, with a distant shoreline and utility poles visible in the background.

Plates of onigiri, rice balls wrapped in nori, on a table.

People examining posters at a scientific conference. A poster titled 'Secondary Extensive Aquaculture? Harvesting Macroalgae in California Oyster Farms' is visible, along with another poster on the right. Participants are discussing the content.

Outdoor event with people standing on grass near a tent, musical instrument, and building under clear blue sky.

Outdoor gathering at sunset with string lights and people socializing. Patio heaters are present, and a building structure is visible. The sky is a gradient of blue and orange hues.

Taiko drumming performance outdoors under a tent with performers in maroon attire and headbands playing large traditional drums.

Rocks covered with seaweed near the ocean shore

A group of people exploring tide pools on a rocky beach with the ocean and distant buildings in the background.

A group of people gathering on a rocky beach during low tide, some wearing jackets and backpacks. In the background, there's a body of water with distant mountains under a clear blue sky.

Group of people standing and sitting on rocks by the ocean, some holding red buckets, under a clear blue sky.

A speaker addressing a large audience seated in a rustic venue with wooden walls and string lights. The audience members are attentive, some sitting with drinks, others standing. The setting includes a projector, laptop, and decorative ceiling lights

Outdoor market with people browsing a vendor's table displaying various items.

3,000+ people showed up for seaweed in 2025.

Help us make this year even bigger by donating to the California Seaweed Festival!

What started as a small gathering of seaweed lovers has become California's fastest-growing celebration of the ocean. In just five years, the California Seaweed Festival has grown from 470 attendees to over 3,000 — and we're just getting started.

The 7th Annual California Seaweed Festival brings together scientists, chefs, farmers, brands, and ocean advocates for a day of discovery, connection, and real conversation about the future of seaweed. Your donation makes it possible.

Every dollar goes toward programming, speakers, tastings, and keeping the event accessible to all. Whether you're a business, an individual, or someone who simply believes the ocean deserves more attention — there's a place for you at this table.

The California Seaweed Festival is a registered 501(c)(3) nonprofit (EIN 92-0986805). Your donation is tax-deductible to the fullest extent permitted by law.

Give $100 or more and you're on the list for our invitation-only Seaweed Speakeasy!

Donate to Support the festival

Contact for more info about the festival

4 levels of sponsorship

All Sponsors are listed on our festival signage, festival program and permanent festival archive page on the website, and receive selected festival merchandise.
Sponsor listings are commensurate with support level. Larger sponsors receive larger and more prominent listings.
*Due to our printing schedule, Sponsorship must be agreed by July 15 for inclusion on posters and handbills.

READY TO BECOME A SPONSOR

3,000+ people showed up for seaweed in 2025.

Help us make this year even bigger by donating to the California Seaweed Festival!

Give $100 or more and you're on the list for our invitation-only Seaweed Speakeasy!

4 levels of sponsorship

All Sponsors are listed on our festival signage, festival program and permanent festival archive page on the website, and receive selected festival merchandise.

Sponsor listings are commensurate with support level. Larger sponsors receive larger and more prominent listings.

*Due to our printing schedule, Sponsorship must be agreed by July 15 for inclusion on posters and handbills.

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