She had found a bathing-pool with a sand bottom, where the creek was damned by fallen trees.
We were on the edge of a large bay and the water was that clear, turquoise color that you get with a white sand bottom.
The lake is known for its sand bottom.
There was a strong stream running, and that, with the heavy sand bottom, made walking difficult.
One could see clean sand bottom through 5 to 6 feet of water at the edge of the flats.
The beach is very shallow, allowing visitors to walk several hundred feet from shore on an all sand bottom.
It lives at depths of about 100 m on muddy sand bottoms.
The wreck scatter is within a 100-m radius of location above on a sand bottom.
They are most commonly found in the border area between reefs and sand bottoms.
Inconspicuously, he worked his hand down through the sand bottom of the prison.