“Coast” is the edge or margin of land next to the sea.
Comment
In LOAC-governed situations under the “other rules of international law” clauses in UNCLOS, a different definition may apply. The same may be the situation if the UN Charter supersedes UNCLOS or if jus cogens norms apply.
Consolidated Glossary ¶ 17 defines “coast” as the “edge or margin of land next to the sea.” Former Glossary ¶ 17 defined “coast” as “The sea-shore. The narrow strip of land in immediate contact with any body of water, including the area between high- and low water lines.”