Coastal Virginia is a low-lying region between the Atlantic Ocean and the Chesapeake Bay. It is known for its flat terrain, tidal marshes, swamps, and agricultural lands. It hosts significant features like military bases, including the world's largest naval base, Norfolk Naval Base. The region boasts beautiful beaches, historic museums, wildlife refuges, and is crossed by several rivers, such as the James and Potomac. It also features the Fall Line, where the Appalachians meet the coastal plain.