California Seaweed Festival

The largest seaweed festival in North America returns to Monterey for its annual event, themed "Dive In! to Seaweeds." This free, public festival moves to a new California coastal location each year, celebrating the community's relationship with seaweed and the ocean. Attendees can connect with seaweed enthusiasts across art, food, science, industry, conservation, Indigenous stewardship, and public policy — a fun, family-friendly way to learn about the algae that fuel ocean ecosystems.