A long, narrow island that is created by the depositing of sand in shallow water is called a "sand bar." Sand bars can be found at the mouths of rivers, as well as in lakes or oceans.
They're called " Barrier Islands "Source: I study geographic features of North America
Archipelago, i looked it up in dictionary.com
Barrier islands.
A Tidal Bore is a wave that forms when a rising tide enters a shallow, narrow river from a wide area of the sea.
This Narrow Road was created in 2001.
The Narrow Way was created in 1969.
The Narrow Valley was created in 1921-06.
An Isthmus
A strait.
The opposite of deep is shallow.It could also have the opposite "superficial" (importance, feelings, burns).ShallowShallow.
Narrow-Headed Vole was created in 1779.
The Narrow Margin was created on 1952-05-04.