A plain that lies along a sea coast is called
interior plain
plaian
A plain that lies away from the coast is called a prairie.
A coastal plain is what you call a plain that lies along a seacoast.
The coastal plain is a low-lying strip of land that lies along a seacoast and slopes gently toward the sea.
idthmus
The Nullarbor Plain lies south of the Australian desert areas and north of the Great Australia Bight, where the Southern Ocean meets Australia's coast.
That is called a fringing reef.
Ceylon
Gdansk, or as we know it, Danzig lies on Poland's coast.
This area is commonly called the Gold Coast. It is not an official name. Ghana was called the Gold Coast prior to being named Ghana.
The Coastal plain is different from an interior plain because a coastal plain lies along the sea coast. Coastal plains also have low relief. The interior plain lies away from the coast and the elevation can vary. Coastal plains are normally damper than interior plains. Interior plains have more chances for drought conditions as well. One result of the differences is population. More likely than not, coastal plains are population centers.
it lies of the pacific coast
The Perejil Island. It lies 250m off the coast of Morocoo