Summer by the Barwon River in Geelong – the trees are green and the Breakwater is high.
Now winter falls – the trees turn bare as the water level rises.
And so the seasons change.
Summer and winter by the Barwon River
March 18th, 2016
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Why does the water level rise ?
During summer less water flows down the Barwon River – the upper reaches are dammed, and many farms also pump water from the river.
http://www.ccmaknowledgebase.vic.gov.au/resources/Barwon_Issues_Paper_LE0523_050905.pdf
At the downstream end, the area pictured is called ‘Breakwater’ and is named for a ford constructed across the river in 1837 to stop saltwater getting into the original drinking water supply for Geelong.
Even further downstream is a second weir at Lake Connewarre that also prevents tidal flows upstream.