Another lake in Greater Victoria has become unsafe due to blue-green algae

It seems to be a common theme on southern Vancouver Island.

The Capital Regional District has added Thetis Lake to its list of lakes unsuitable for use due to a blue-green algae bloom.

On July 8, the warning for Elk Lake and Beaver Lake was extended to include Thetis Lake.

The advisory warns swimmers and dog owners to avoid contact with blue-green algae and to keep their animals on a lead so they cannot drink from or swim in the lake until the advisory is lifted.

Blue-green algae produce a visible blue-green sheen, which can appear on the water surface as foam. Some species are harder to see than others.

“These algae are known toxin producers. Drinking water containing these cyanotoxins can cause a range of symptoms, including headaches and abdominal pain in humans, and can lead to fatal liver damage in dogs,” the CRD said in its public warning.

“Blooming is unpredictable and can happen at any time.”

In addition to this latest blue-green algae bloom warning, the CRD still has an active warning for two areas in Elk/Beaver Lake Regional Park due to algae blooms.

With the weather now scorching hot, many are heading to the lakes to cool off, but if you’re looking for an alternative solution, we have a list of water parks around Greater Victoria to avoid the heat!