Waverly Beach, Reebs Bay, Nelles Beach, Queen's Royal Beach and Sherkston Quarry Beach listed as unsafe for swimming.
A word of warning if you plan to go swimming anytime soon.
Niagara Region Public Health has listed five beaches as unsafe for swimming.
Waverly Beach in Fort Erie and Reebs Bay in Wainfleet have been listed as unsafe due to algae.
Nelles Beach in Grimsby has been flagged for safety issues, and e.coli has been detected at Queen's Royal Beach in Niagara-on-the-Lake and Sherkston Quarry Beach in Port Colborne.
More information is available here.

Premier Pressured for State of Emergency
It's a Big Year for St. Catharines
Police Stop Drug Transaction on Street
'Shark Tank' Designed to Increase Revenue
Man Charged with Child Sexual Assault
Pedestrian Seriously Hurt After Hit by Car
Man caught driving 3-wheeled pickup truck
2 from Niagara named to the Order of Canada