Wasaga Beach, Ont. – A swim advisory has been issued for the main beach at Wasaga Beach, one of Ontario’s most popular freshwater destinations, due to elevated bacteria levels in the water. The advisory was announced by the Simcoe Muskoka District Health Unit on July 5, 2026, urging the public to avoid swimming until water quality improves.
Health Unit Issues Warning
The health unit’s routine water testing detected bacteria counts exceeding the provincial safety threshold. “We advise against swimming at Wasaga Beach’s main beach until further notice,” said Dr. Colin Lee, associate medical officer of health. “High bacteria levels can cause skin, eye, and ear infections, as well as gastrointestinal illness.”
Factors Contributing to Bacteria Levels
Heavy rainfall and warm temperatures often contribute to increased bacteria, as runoff from surrounding areas can wash contaminants into the lake. The health unit will continue daily testing and will lift the advisory once levels return to safe limits. Beachgoers are encouraged to check the health unit’s website or call the beach information line for updates.
Impact on Visitors
Wasaga Beach attracts over 2 million visitors annually, and the advisory comes during the peak summer season. Local businesses may see reduced foot traffic as tourists avoid the water. “We’re disappointed, but safety comes first,” said a spokesperson for the Town of Wasaga Beach. “We’re working with the health unit to resolve the issue as quickly as possible.”
Previous Advisories
Similar advisories were issued in July 2024 and August 2025, both lasting two to three days. The health unit emphasizes that these are precautionary measures and that the beach remains open for other activities such as sunbathing and picnicking.
