UPDATED Sept. 1, 3:26 p.m.:
In Muskoka’s last round of beach water testing for the year, only Franklin Park Beach in Gravenhurst is under a swimming advisory.
The Simcoe Muskoka District Health Unit also warns of blue-green algae blooms in Gravenhurst’s Bass Lake, Muskoka Lakes’ Three Mile Lake, and Stewart Lake in Georgian Bay Township.
Officials say to avoid swimming, drinking, or otherwise using the affected water.
The health unit tests beach water in the region every summer between June and Labour Day long weekend.
