The northern shoreline of St. Mary Lake. The water—at least on the surface—is green. Why?
Salt Spring Photographer John Cameron
The northern shoreline of St. Mary Lake. The water—at least on the surface—is green. Why?
Photographs of Salt Spring Island and areas reachable by ferry and road (and sometimes off-road).
Bill Foster says
In an optimally designed pond, the under water bank slope is steep.
This deepens the water. A foot or two of water blocks out the sunlight needed for the algae to grow.
And I suspect that there is fertilizer in the lake.
I love seeing your creativity,
Bill
John Cameron says
That was my take as well. Thanks Bill.