You will want to avoid Crescent Beach in Fort Erie, Waverly Beach in Fort Erie and Sherkston Quarry Beach in Port Colborne this weekend.
Public Health has issued warnings for those areas after officials conducted regular water testing.
Warning are issued whenever they find high levels of E.Coli bacteria which could lead to ear, eye, nose, throat or skin infections.
It could also cause diarrhea if you ingest the water.
Those beaches may also be considered unsafe due to floating debris, excessive weed growth, oil or bad odours.
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