Core Sound is a coastal sound in eastern North Carolina between the mainland and Core Banks, part of the Outer Banks. It lies between Pamlico Sound to the northeast and Back Sound to the west, with several shifting inlets linking it to the Atlantic Ocean. Mainland communities along its shore include Marshallberg, Davis, Sea Level, and Atlantic. Core Banks has no permanent settlements, though rental cabins are available there, and a ferry from Davis brings day visitors and campers across the sound to the islands.