Harbor
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A harbor or harbour is a sheltered part of a body of water where ships, boats, and barges can be moored.
Port of Jebel Ali, which has the largest artificial harbor in the world.
Ria
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A ria is a coastal inlet formed by the partial submergence of an unglaciated river valley. It is a drowned river valley that remains open to the sea.
Harbor
…called cothons. A natural harbor is a landform where a section of a body of water is protected and deep enough to allow anchorage. Many such harbors are rias. Natural harbors have long been of great strategic naval and economic importance, and many great cities of the world are located on them. Having a…
Port Jackson, also referred to as Sydney Harbour, is a ria, or drowned river valley. The deeply indented shape of the ria reflects the dendritic pattern of drainage that existed before the rise in sea level that flooded the valley.
Ria of San Vicente de la Barquera in Cantabria, Spain
Ria of Rijeka Dubrovačka in Dubrovnik, Croatia
Ria of Bay of Kotor in Kotor, Montenegro