Coastal zone

"The area of land and sea along the coast, including estuaries, onshore areas and offshore areas; wherever they form an integral part of the coastal system." (United Nations Publications, 2013) 

Sources

United Nations Publications. "Glossary of Shared Water Resources (English-Arabic): Technical, Socioeconomic and Legal Terminology." (2013). DOI:https://dx.doi.org/10.18356/70b462ce-en