A certain kind of fish lived only in the deep, broad estuary where salt water met fresh.

Whoops, it was only the broad, slack estuary at the mouth of the Columbia.

At Barmouth we crossed another broad estuary, on a rickety-looking wooden causeway.

As the river approaches the Atlantic Ocean it becomes a broad estuary.

To the left, the beaches ran into the broad estuary of the River Dyfi, full and blue now with water at high tide.

They had an occasional glimpse of the broad estuary beyond the scrub and pasture, and the mountains rising far back.

It seemed now that they had come to the end of the open sea, and were entering the broad estuary of a sizable river.

The lower half of the Niawiakum River is a broad estuary and tidal marshland.

Some of these arms of the sea jut far inland as broad, shallow estuaries.

The delta empties into a broad estuary which it shares with a few smaller rivers.