Advisory Not Active: Report of Blue-Green Algae (Brandy Lake)

(Update as of May 27, 2026) Please be advised that the information on this page is more than seven months old. According to the Simcoe Muskoka District Health Unit, there are currently no active blue-green algae blooms affecting local waterways.

Please note that the information referenced was provided by the Ministry of the Environment, Conservation and Parks for advisory purposes only, following a reported concern. No testing was subsequently conducted to confirm the presence of blue-green algae.

MUSKOKA LAKES, ON, Oct. 7, 2025 – The Township of Muskoka Lakes is advising residents and visitors that the Ministry of the Environment, Conservation and Parks has indicated blue-green algae bloom conditions may be present within the north-east area of Brandy Lake, Port Carling. Ministry sampling is not planned at this time. 

Please note: The Simcoe Muskoka District Health Unit will post bloom locations on their website only when they have been confirmed through testing. To view current waterways affected by blue-green algae, please visit Simcoe Muskoka District Health Unit

Blue-green algae can produce toxins that may pose health risks to people and pets. Conditions on the water can change quickly; blooms may appear, move, or dissipate with wind and weather. The Township will continue to share updates as they become available.

What you should do if a blue-green algae bloom is confirmed: 

• Avoid contact with water where algae is visible; keep children and pets away.
• Do not drink, cook with, or brush teeth with lake water from the affected area. Boiling does not remove toxins. Use an alternate safe water source (e.g., bottled water).
• Do not fill pools or spas with lake water.
• If you choose to eat fish from the lake, consume only properly cleaned fillets and avoid organs.
• If you develop symptoms after contact with affected water (e.g., skin, eye, throat irritation; stomach upset), contact your healthcare provider.

For information on the potential health risks associated with blue-green algal blooms, please contact Health Connection at 705-721-7520 or toll-free at 1-877-721-7520 to speak with a public health inspector.

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For general or media inquiries, please contact:
Mia Palantzas
Communications Advisor
mpalantzas@muskokalakes.ca
705-765-3156 Ext. 360
www.muskokalakes.ca 

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