A coast is never a line. It is more like a sentence that is continually covered, erased, and written again.
Before the lowest tide
At 5:40 a.m., the tide began to withdraw from the breakwater's shadow. The first things exposed were not rocks but a row of short wooden piles left by shoreline construction. Algae had wrapped them below the waterline, hiding the original grain; only their arrangement showed that they had once belonged to a pier.
The water did not retreat evenly. Narrow channels still moved seaward along the lowest ground, while shallow hollows held the light of the sky. Every ten minutes we photographed the same marker. Only when the images were aligned did we see that the waterline was not shifting straight into the distance, but changing direction along many small paths at once.
“We tend to call the tide coming in and going out, but to the plants here, it is simply breathing.”
At 6:20, the edge of the salt marsh appeared. Fine silt had gathered around the roots, its surface crossed by broken trails from small crabs. Each ebb leaves some suspended matter among the plants; a rise invisible to the eye will alter the paths of the water a year later.
A boundary kept by water
Near low tide, a low concrete wall emerged from the wet sand. Old local maps mark it as the outer edge of a warehouse; today it lies more than sixty metres from land. The sea has not worn the surface smooth. Instead, it is dense with oyster shells, and a structure once used to divide land is now part of a tide pool.
As the sun rose, glare made measuring distance difficult. We turned off route guidance on our phones and followed the darkest band between wet and dry sand. It was a path that had only just appeared and was already about to vanish; on our return, the first piles we recorded were underwater again.
Three stops along the way
The piles stand about forty centimetres clear, their surfaces covered with algae and barnacles.
The tidal channel begins to break apart; the mud still holds a mirror-like sheen.
The concrete wall is fully exposed, with three separate tide pools behind it.