
Algal Bloom Updates
What You Need to Know - From BSYC
Subject: Update on Algal Blooms and 2026 Windsurfer Nationals at BSYC
We’d like to provide an update regarding the current marine conditions affecting parts of South Australia, and how this relates to 2026 Windsurfer Nationals planned at Brighton & Seacliff Yacht Club (BSYC).
As you may have seen in the media, there are two distinct harmful algal blooms (HABs) currently affecting different areas of the state:
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Marine Karenia Bloom (Adelaide Metro Coast)
This bloom has impacted the southern Adelaide coastline since January 2025 and in recent weeks has moved into the Adelaide Metropolitan coastline including waters adjacent to BSYC. It has resulted in significant fish and marine life mortality and has raised concerns for water quality. However, this is a marine algae, distinct from the freshwater variety, and is not always visible at the surface or present at harmful levels. Conditions vary week to week and are monitored by relevant authorities.
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Freshwater Blue-Green Algae (Lower Lakes & Goolwa)
Earlier this year, this toxic freshwater algae prompted strong health warnings from SA Health at Goolwa, leading to the relocation of the Goolwa Classic Windsurfer Regatta to BSYC in May. This is a separate issue and does not affect marine waters.
You can find current water quality alerts and guidance at the SA Health website:
👉 SA Health Water Quality Alerts
What’s Happening Now?
As of 27 July 2025, despite reports of fish kills and discolouration along parts of the coast, swimmers and shortboard windsurfers have been enjoying conditions at Seacliff. No health impacts have been reported locally from recreational water users, but we will continue to monitor closely.
Planning for the 2026 Nationals
WCAA and BSYC are developing a Water Quality Risk Management Plan for the January 2026 event. This includes:
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Direct liaison with SA Health, PIRSA, and EPA.
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Regular updates on local water quality.
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Contingency planning for course location (e.g., further offshore).
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Health and safety guidance for competitors and volunteers.
It's important to note that Surf Life Saving clubs along the metro coast hold in-water surf life saving events throughout summer. Their programs, along with state monitoring, provide an additional level of oversight and confidence in water conditions.
Contingency Planning
While it remains unlikely that the Nationals will need to be relocated, we are preparing for contingencies. Should the South Australian authorities determine that there is a risk to participant health closer to the event date, we will determine the best course of action—including alternate venues.

