Seto Inland Sea - Wikipedia

The Inland Sea an its major straits

The Seto Inland Sea (瀬戸内海, Seto Naikai), eften shortened tae Inland Sea, is the body o watter separatin Honshū, Shikoku, an Kyūshū, three o the fower main islands o Japan.

v t e Yird's oceans an seas
Arctic Ocean	Amundsen Gulf Barents Sea Beaufort Sea Bering Strait Chukchi Sea East Siberian Sea Fram Strait Greenland Sea Gulf o Boothia Kara Sea Kara Strait Laptev Sea Lincoln Sea Prince Gustav Adolf Sea Pechora Sea Wandel Sea White Sea
Atlantic Ocean	Adriatic Sea Aegean Sea Alboran Sea Archipelago Sea Argentine Sea Baffin Bay Balearic Sea Baltic Sea Bay o Biscay Bay o Bothnia Bay o Campeche Bay o Fundy Black Sea Bothnian Sea Caribbean Sea Celtic Sea Davis Strait Denmark Strait Inglis Channel Foxe Basin Greenland Sea Gulf o Bothnia Gulf o Finland Gulf o Lion Gulf o Guinea Gulf o Maine Gulf o Mexico Gulf o St. Lawrence Gulf o Sidra Gulf o Venezuela Hudson Bay James Bay Ionian Sea Erse Sea Irminger Sea Labrador Sea Levantine Sea Libie Sea Ligurian Sea Marmara Sea Mediterranean Sea Myrtoan Sea North Sea Norwegian Sea Sargasso Sea Sea o Åland Sea o Azov Sea o Crete Sea o the Hebrides Thracian Sea Tyrrhenian Sea Wadden Sea
Indie Ocean	Andaman Sea Arabie Sea Bay o Bengal Gulf o Aden Gulf o Aqaba Gulf o Khambhat Gulf o Kutch Gulf o Oman Gulf o Suez Laccadive Sea Mozambique Channel Persie Gulf Reid Sea Strait o Malacca Timor Sea
Paceefic Ocean	Arafura Sea Bali Sea Banda Sea Bering Sea Bismarck Sea Bohai Sea Bohol Sea Camotes Sea Celebes Sea Ceram Sea Chilean Sea Coral Sea East Cheenae Sea Flores Sea Gulf o Alaska Gulf o Californie Gulf o Carpentaria Gulf o Fonseca Gulf o Thailand Gulf o Tonkin Halmahera Sea Java Sea Koro Sea Mar de Grau Makassar Strait Molucca Sea Moro Gulf Philippine Sea Salish Sea Savu Sea Sea o Japan Sea o Okhotsk Seto Inland Sea Sibuyan Sea Solomon Sea Sooth Cheenae Sea Sulu Sea Tasman Sea Visayan Sea Yellow Sea
Soothren Ocean	Amundsen Sea Bellingshausen Sea Cooperation Sea Cosmonauts Sea Davis Sea D'Urville Sea King Haakon VII Sea Lazarev Sea Riiser-Larsen Sea Mawson Sea Ross Sea Scotia Sea Somov Sea Weddell Sea
Laundlocked seas	Aral Sea Caspian Sea Dead Sea

Coordinates: 34°10′N 133°20′E / 34.167°N 133.333°E / 34.167; 133.333