And they have to move fast as their quarry is only exposed at low tide.

It comprises a rock ledge that is fully exposed at low tide.

The sandy stretches of the beach are only exposed at low tide.

The lagoons continue to shallow until the lagoon floor is exposed at low tide.

In this section of the river, large flats and sand banks are exposed at low tide.

Trepang live on the sea floor and are exposed at low tide.

The shoal is exposed at low tide and has been the site of numerous shipwrecks.

"Yes, there are sandbanks most of the way, all of them exposed at low tide."

The mud exposed at low tide is an important wading ground for coastal birds.

However, on lower lying parts of the island, exposed at low tide, seaweeds and other sea plants live.