navigable sea.Int’l law. The ocean waters divided into three zones of control among nations: (1) the inland waters, which are near a nation’s shores and over which a nation has complete sovereignty; (2) territorial waters, which are measured from the seaward edge of the inland waters, over which a nation has extensive control but over which innocent parties must be allowed to travel to other nations; and (3) the high seas, which are international waters not subject to the domain of any single nation. [Cases: International Law 7. C.J.S. International Law §§ 23–24.]

[Blacks Law 8th]