INTERNAL WATERS

internal waters.Any natural or artificial body or stream of water within the territorial limits of a country, such as a bay, gulf, river mouth, creek, harbor, port, lake, or canal. — Also termed inland waters.

“Waters on the landward side of the baseline of the territorial sea form part of the internal waters of a State.” Geneva Convention on the Territorial Sea and the Contiguous Zone, Apr. 29, 1958, art. 5, ¶ 1.

[Blacks Law 8th]