Tidewater region is an area.
The Tidewater region is a geographic area of southeast Virginia and northeastern North Carolina , part of the Atlantic coastal plain in the United States of America . Portions of Maryland facing the Chesapeake Bay are also given this designation . The area is generally flat and low and composed of tidal marsh and large expanses of swamp . Geographically , in North Carolina and Virginia the Tidewater area is the land between the Suffolk Scarp and the Atlantic Ocean . In the case of Virginia , the Tidewater region includes the land east of the Fall Line , the natural border with the Piedmont Region .