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Welcome to the Sea Bottom website.


Sinbad searched the seven seas to find what he was looking for ... we've found a few more then seven seas.  A modern Sea Cruise would be much more comfortable then the adventures of Sinbad and computers make searches much faster and safer.

A sea (pronounced see) is a large expanse of saline water (salt water) connected with an ocean.  Almost three quarters (71%) of the surface of the Earth is covered by ocean. This global, interconnected body of salt water is divided by the continents and larger archipelagos into into five oceans as follows:

  • Arctic Ocean
  • Atlantic Ocean  
  • Indiana Ocean   
  • Pacific Ocean  
  • Southern Ocean  by some reckonings the Southern Ocean is not an ocean in its own right, and is divided among the Atlantic, Indian and Pacific oceans.

The term sea  is also used for large, usually saline, lakes that lack a natural outlet, such as the Caspian Sea and the Sea of Galilee. The term is used in a less geographically precise manner as synonymous with ocean, as in the tropical sea or down to the sea shore, or even sea water referring to water of the ocean.

Many seas are marginal seas.  A marginal sea is a sea bordering a continent and separated from an ocean by any of a variety of features such as:

  • land features like an island, archipelago, or peninsula.
  • waterways like a strait or channel.

List of seas, divided by ocean

Pacific Ocean

  • Bering Sea
  • Gulf of Alaska
  • Sea of Cortez (aka Gulf of California)
  • Sea of Okhotsk
  • Sea of Japan
  • East China Sea
  • South China Sea
  • Sulu Sea
  • Celebes Sea
  • Bohol Sea (aka Mindanao Sea)
  • Philippine Sea
  • Flores Sea
  • Banda Sea
  • Arafura Sea
  • Timor Sea
  • Tasman Sea
  •  Yellow Sea
  • Coral Sea

Atlantic Ocean

  • Hudson Bay
    • James Bay
  • Baffin Bay
  • Gulf of St. Lawrence
  • Caribbean Sea
  • Gulf of Mexico
  • Sargasso Sea
  • North Sea
  • Baltic Sea
    • Gulf of Bothnia
  • Irish Sea
  • Mediterranean Sea
    • Adriatic Sea
    • Aegean Sea
    • Black Sea
      • Sea of Azov
    • Ionian Sea
    • Liqurian Sea
    • Mirtoon Sea
    • Tyrrhenian Sea
    • Gulf of Sidra
    • Sea of Marmara
    • Sea of Crete
  • Bay of Biscay
  • Gulf of Guinea

Indian Ocean

  • Red Sea
  • Gulf of Aden
  • Persian Gulf
  • Gulf of Oman
  • Arabian Sea
  • Bay of Bengal
  • Java Sea

Arctic Ocean

  • Barents Sea
  • Kara Sea
  • Beaufort Sea
    • Amundsen Gulf
  • Chuckchi Sea
  • Laptev Sea
  • East Siberian Sea

Southern Ocean

  • Weddell Sea
  • Ross Sea

Landlocked seas

  • Aral Sea
  • Caspian Sea
  • Dead Sea
  • Sea of Galilee

Extraterrestrial seas

Lunar maria are vast basaltic plains on the Moon that were thought to be bodies of water by early astronomers, who referred to them as "seas."

Liquid water is thought to be present under the surface of several moons, most notably Europa.

Liquid hydrocarbons are thought to be present on the surface of Titan, though it may be more accurate to describe them as "lakes" rather than "seas". The distribution of these liquid regions will hopefully be better known after the arrival of the Cassini probe.


The term "sea" has also been used in quantum physics quantum physics.  Dirac sea is an interpretation of the negative energy states that comprises the vacuum.


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