The International Hydrographic Organization defines the limits of the Aegean Sea as follows:
The International Hydrographic Organization defines the limits of the Arabian Sea as follows:
The International Hydrographic Organization defines the limits of the Baltic Sea as follows:
The International Hydrographic Organization defines the limits of the Black Sea as follows:
The International Hydrographic Organization defines the limits of the Caribbean Sea as follows:
The International Hydrographic Organization defines the western limit of the Gulf of Finland as a line running from Spithami ( 59 ° 13 ' N ), in Estonia, through the island of Osmussaar from SE to NW and on to the SW extreme of Hanko Peninsula ( 22 ° 54 ' E ) in Finland.
The International Hydrographic Organization defines the limits of the Gulf of Oman as follows:
The International Hydrographic Organization defines the limits of the " Kattegat, Sound and Belts " ( that is, the Kattegat, Øresund, Great Belt and Little Belt ) as follows:
The International Hydrographic Organization defines the limits of the Kara Sea as follows:
The International Hydrographic Organization defines the limits of the Northwestern Passages as follows:
The International Hydrographic Organization defines the limits of the Norwegian Sea as follows:
The International Hydrographic Organization defines the limits of the Strait of Gibraltar as follows:
The International Hydrographic Organization defines the limits of the Sea of Marmara as follows:
The International Hydrographic Organization defines the limits of the Tyrrhenian Sea as follows:
The International Hydrographic Organization defines the southwest extent of the Gulf of Guinea as " A line running Southeastward from Cape Palmas in Liberia
The International Hydrographic Organization defines the limits of the " Barentsz Sea " as follows:
The International Hydrographic Organization defines the limits of the Ionian Sea as follows:
The International Hydrographic Organization defines the limits of the Bay of Bengal as follows:
The International Hydrographic Organization defines the limits of the Bay of Biscay as " a line joining Cap Ortegal () to Penmarch Point ()".
The International Hydrographic Organization defines the limits of the " Andaman or Burma Sea " as follows:
The International Hydrographic Organization defines the limits of the Yellow Sea ( which it also names as " Hwang Hai ") as follows:
The International Hydrographic Organization defines the limits of the Sea of Okhotsk as follows:
The International Hydrographic Organization defines the limits of the Bering Sea as follows:
The International Hydrographic Organization defines the northern limit of Hudson Bay as follows:
The International Hydrographic Organization defines the limits of the Gulf of Aden as follows:
The International Hydrographic Organization defines the limits of the " Japan Sea " as follows:
The International Hydrographic Organization defines the limits of the Strait of Malacca as follows:
The International Hydrographic Organization defines the limits of the Bass Strait as follows:
The International Hydrographic Organization defines the southwest limit of the Bay of Fundy as " A line running northwesterly from Cape St. Mary ( 44 ° 05 ' N ) Nova Scotia, through Machias Seal Island ( 67 ° 06 ' W ) and on to Little River Head ( 44 ° 39 ' N ) in the State of Maine ".
The International Hydrographic Organization defines the limits of the Tasman Sea as follows:
The International Hydrographic Organization defines the limits of the Gulf of Saint Lawrence as follows:
The International Hydrographic Organization defines the northern limit of the White Sea as " A line joining Svyatoi Nos ( Murmansk Coast, 39 ° 47 ' E ) and Cape Kanin ".
The International Hydrographic Organization defines the southern limit of the Gulf of California as: " A line joining Piastla Point ( 23 ° 38 ' N ) in Mexico, and the southern extreme of Lower California ".
The International Hydrographic Organization defines the limits of the " Eastern China Sea ( Tung Hai )" as follows:
The International Hydrographic Organization defines the southern limit of the Gulf of Bothnia as follows:
The International Hydrographic Organization defines the limits of the Skagerrak as follows:
The International Hydrographic Organization defines the eastern extent of the Río de la Plata as " A line joining Punta del Este, Uruguay () and Cabo San Antonio, Argentina ()".
The International Hydrographic Organization defines the southern limit of the Gulf of Thailand as " A line running from the Western extreme of Cambodia or Camau Point ( 8 ° 36 ' N ) this point is actually in Vietnam to the Northern extreme of the point on the East side of the estuary of the Kelantan River ()".
The International Hydrographic Organization defines the Great Australian Bight as part of the southeastern Indian Ocean, with the following limits:
The International Hydrographic Organization defines the Philippine Sea as " that area of the North Pacific Ocean off the Eastern coasts of the Philippine Islands ", bounded as follows:
The International Hydrographic Organization defines the southern limit of the Gulf of Suez as " A line running from Ràs Muhammed ( 27 ° 43 ' N ) to the South point of Shadwan Island ( 34 ° 02 ' E ) and thence Westward on a parallel ( 27 ° 27 ' N ) to the coast of Africa ".
The International Hydrographic Organization defines the southern limit of the Gulf of Aqaba as " A line running from Ràs al Fasma Southwesterly to Requin Island () through Tiran Island to the Southwest point thereof and thence Westward on a parallel ( 27 ° 54 ' N ) to the coast of the Sinaï Peninsula ".
The International Hydrographic Organization defines the limits of the Coral Sea as follows:
The International Hydrographic Organization defines the limits of the Bristol Channel as " a line joining Hartland Point Devon () to St. Govan's Head Pembrokeshire ()".
The International Hydrographic Organization defines the limits of the Inland Sea as follows:
The International Hydrographic Organization defines the limits of the Beaufort Sea as follows:
The International Hydrographic Organization defines the limits of the Labrador Sea as follows:
The International Hydrographic Organization defines its western limit as " A line running from Lyser Ort ( 57 ° 34 ' N ), in Latvia, to the S extreme of Œsel Island < nowiki >
The International Hydrographic Organization defines the limits of the Celtic Sea as follows:
The International Hydrographic Organization defines the limits of the East Siberian Sea as follows:
The International Hydrographic Organization defines the limits of the " Chuckchi Sea " as follows:
The International Hydrographic Organization defines the limits of the Gulf of Alaska as follows:
The International Hydrographic Organization defines the Bismarck Sea as " that area of the South Pacific Ocean off the Northeast coast of New Guinea ", with the following limits:
The International Hydrographic Organization defines the limits of the Ligurian Sea as follows:
The International Hydrographic Organization defines the limits of the Alboran Sea as follows:
The International Hydrographic Organization defines the limits of the Singapore Strait as follows:
The International Hydrographic Organization defines the limits of the Greenland Sea as follows:
The International Hydrographic Organization defines the limits of the Laccadive Sea as follows:
The International Hydrographic Organization defines the limits of the Solomon Sea as follows:
The International Hydrographic Organization defines the limits of the Lincoln Sea as follows:
The International Hydrographic Organization defines the limits of the Balearic Sea as follows:
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