Public Advisory: Blue-Green Algae Identified (Brandy Lake)
MUSKOKA LAKES, ON, Oct. 7, 2025 – The Township of Muskoka Lakes is advising residents and visitors that the Simcoe Muskoka District Health Unit (SMDHU) has confirmed the presence of blue-green algae (cyanobacteria) within Brandy Lake, Port Carling.
Brandy Lake, Port Carling
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 from SMDHU as they become available.
What you should do (until further notice):
- 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 health and water safety inquiries, please contact:
Simcoe Muskoka District Health Unit – Health Connection
705-721-7520 or 1-877-721-7520 (toll-free)
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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Contact Us
Township of Muskoka Lakes
1 Bailey St., P.O. Box 129,
Port Carling, ON, P0B 1J0
T: 705-765-3156 F: 705-765-6755
Office Hours: 8:15 a.m. to 4:00 p.m.
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