A multi-agency investigation is underway after a strange brown foam and dead marine life—including fish and leafy seadragons—were found along Waitpinga Beach in South Australia. The foam, which also appeared at nearby beaches, stretches hundreds of metres and has been linked to a wave of health complaints from beachgoers, including coughing, sore eyes, wheezing, and blurred vision. Many reported flu-like symptoms after exposure, even without entering the water.

Local surfer Anthony Rowland and others noted a visible slick on the water and a “yellowy” foam, with Rowland collecting multiple dead seadragons over a short stretch. Social media reports prompted dozens more to share similar symptoms. The Department for Environment and Water has closed Waitpinga and Parsons Beaches as a precaution, while the Department of Primary Industries and Regions (PIRSA) investigates the potential causes, which may include algal blooms, pollutants, or low oxygen levels in the water.

SA Health advised people to avoid contact with discoloured water and noted that algae exposure could cause respiratory and skin symptoms. No hospitalisations have been confirmed, but the public is urged to report any fish deaths or illness through official channels.

Read full ABC article by Thomas Kelsall and Caroline Horn here: https://www.abc.net.au/news/2025-03-17/waitpinga-beach-foam-investigation/105060888