Sherkston Quarry Beach, Waverly Beach and Nelles Beach flagged as unsafe for swimming.
A word of warning if you plan to go swimming.
Niagara Region Public Health says Waverly Beach is unsafe due to the presence of algae.
Meanwhile, Nelles Beach in Grimsby has been flagged due to safety issues, and Sharkston Quarry Beach in Port Colborne is posted due to ecoli.

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