Grey Bruce Public Health has lifted the swim advisory for Northwinds Beach after receiving test results from a new series of beach water samples that show bacterial levels have returned to within Ontario Ministry of Health guidelines for safe swimming/bathing.

“We would like to thank the residents of the Town of the Blue Mountains and visitors to Northwinds Beach for respecting the advisory. Beaches are posted when bacterial levels in the water could pose a risk to human health,” says GBPH Senior Public Health Manager Chimere Okoronkwo.

Public Health, in consultation with the Town of the Blue Mountains, had posted Northwinds Beach as unsafe for swimming on Thursday, July 10, 2025.

The decision was made after GBPH received lab confirmation that water samples from the beach had bacterial levels exceeding Ontario’s recreational water quality guideline of a maximum of 200 E. coli per 100 millilitres of water.

People who swim, play in, or use beach water with high bacterial levels are at an increased risk of getting sick or an infection.

Even if a beach is not officially posted as unsafe for swimming, Grey Bruce Public Health advises people to use their best judgment before taking a dip or allowing children or pets to swim or play in the water. Water quality can change from day to day or even hour to hour depending on the weather and other conditions.

Do not swim or play in beach water within 48 hours of heavy rainfall, if the water is so cloudy that you cannot see your feet at waist-deep, or if there is a large number of birds or algae in the water.