Back for another two weeks at the cottage in the gorge

Kings Bridge Cottage, Cataract Gorge, Launceston. Tasmania

Launceston is built on the flood plain associated with the Tamar Estuary and the North and South Esk Rivers.
Kings Bridge Cottage is located just inside the gorge at the juncture of the Tamar Estuary and South Esk River, five minutes from the centre of Launceston.
This river system is tidal, and I have mapped the vertical movement of the South Esk River as it moves up and down the face of the gorge (see post 'The Moon and the South Esk River.')
Now I'm interested in mapping the horizontal movement of the Tamar as it flows in and out at the edge of town.
I'll do this daily by marking high and low tide with a series of poles, and photographing the process. 
I start tomorrow.
Photographs to follow.