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

Roasted squashes stuffed with greens and vegetables

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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.

Rocks covered with seaweed near the ocean shore

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.

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

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

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.

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

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6th Annual California

Seaweed Festival

Take survey here

Thank you!

The California Seaweed Festival wants to thank all of the participants and attendees of this year’s festival! We are so happy that so many people enjoyed this year’s festival. See you all next year in Central California!

Our 2025 Sponsors & Partners

Collaborators

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Kelp Forest Sponsors

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Frond Sponsors

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Holdfast Sponsors

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In-Kind Donors

Smog City Brewing Co, Kachemak Kelp, Uncharted Alaska, North Coast Seafoods, Morgan Morgan, CSUN, Monterey Bay Seaweeds, Karn's Kelp, Blue Evolution

OUR MISSION

Celebrating the interdependence of people, seaweeds and coastal ecosystems.

OUR STORY

The California Seaweed Festival arose from decades of studying seaweeds, admiring their beauty and learning myriad ways that seaweeds make life better. We want to share the beauty and diversity of seaweeds on our coasts.

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Help us celebrate seaweeds in California by becoming a sponsor!

LEARN ABOUT SPONSORSHIPS

Join us, we’re social!

It’s always a good time to celebrate seaweeds in California.

The festival might be over, but our Seaweed of the Week continues! This week, we’re learning about red sea grapes, Botryocladia—not to be confused with green sea grapes, Caulerpa.

Seaweed of the Week is developed in collaboration with Dr

THANK YOU AGAIN TO OUR AMAZING SPONSORS!!! Azulito Fund, @caseagrant , Regenerative Coastal Systems Lab, @portofsandiego , @oceanrainforest , @drinkoomee , @wwf , Enlyst Fund! Thank you to our donors, @grassybaroyster / @holdfastaq , @culturedabalone

Here you have it! Only a day away! Its our California Seaweed Festival MAP! CHECK IT OUT! Find where everything is at. See you tonight at the Speakeasy and tomorrow at the California Seaweed Festival 2025! #caseaweedfest25 #thingstodoinla #sustainabl