What are the bodies of water in coastal plains?

* Bays: A bay is a coastal recess of salt water that is often larger than a cove, but smaller than a gulf. Bays are usually formed by the partial submergence of a coastal plain or river valley.

* Coves: A cove is a small, sheltered inlet or bay in a coastline, often used as a harbor. Coves are often formed by the erosion of coastal cliffs or the deposition of sediment by waves.

* Estuaries: An estuary is a partially enclosed coastal body of water where freshwater from rivers and streams mixes with saltwater from the ocean. Estuaries are often located at the mouths of rivers and are important habitats for a variety of plants and animals.

* Fjords: A fjord is a long, narrow, deep inlet of the sea between high cliffs, typically found in Scandinavia and other glaciated regions. Fjords are formed by the erosion of glaciers and are often very deep.

* Gulfs: A gulf is a large, coastal inlet of the sea, usually larger than a bay. Gulfs are often formed by the partial submergence of a coastal plain or river valley.

* Lagoons: A lagoon is a shallow, brackish body of water separated from the sea by a barrier island or reef. Lagoons are often found along tropical and subtropical coasts and are important habitats for a variety of plants and animals.

* Sounds: A sound is a wide, navigable channel or strait of water between two landmasses. Sounds are often formed by the erosion of coastal cliffs or the deposition of sediment by waves.