Seven beaches have been posted by Niagara Public Health as unsafe to swim.
They include Waverly Beach in Fort Erie, Fifty Point Conservation Beach and Nelles Beach in Grimsby, Charles Daley Park East in Lincoln, Queen's Royal Beach in Niagara-on-the-Lake, Humberstone Centennial Park Beach in Port Colborne and Lakeside Beach in St. Catharines.
Public Health says high bacteria in the water can lead to skin infections and an upset stomach if water is swallowed.
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