When the tide rises and water moves up the channel, the basin fills, and small fish and larvae (food for the birds) enter the pond.
An arrow indicates whether the tide is rising or falling.
Then as the tide turns a surge of muddy water rushes upstream, ever swifter.
It was another bizarre sight but even the half-time whistle, once it finally came, did little to stem the tide of extraordinary events.
the rising tide covered the wharf
He related his own experience of how people can get caught out, unaware of the danger because it is the area nearest the shore that gets covered by water first as the tide comes in.
All day, the Atlantic churned and the tide surged under the narrow strip of land that separates the ocean from the Gulf of Mexico.
They were sitting at the beach, watching the tide as it covered them up to about the waist in its waves every few seconds, and watching the sunset.
The tide had fallen, which revealed another part of the hidden area.
Basically, it's just a dam built across a bay, which opens as the tide is coming in, and then closes and traps the accumulated water as the tide moves out.