Over shallows even the water of the tropical oceans is always green.
Deidre awoke and looked at her then at her ankles. Katie was caught by the other woman's eyes. They were large and turquoise, like the shallows surrounding the Caribbean Sanctuary.
The chain of the Frisian Islands marks the outer fringe of the former continental coast-line, and is separated from the mainland by shallows, known as Wadden or Watten, answering to the maria vadosa of the Romans.
Similarly the obstructions offered to water communication by interruption through land or shallows are overcome by cutting canals or dredging out channels.
It is lowest in November, and rocks, shallows, and the remains of old dams then render it almost unnavigable.