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Which marginal seas and gulfs are part of the Indian Ocean region?

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The Indian Ocean features fewer marginal seas than other major oceans, but it contains several significant coastal indentations and gulfs. These bodies of water are integral to the region's geography and circulation patterns.12

Marginal Seas

The primary marginal seas associated with the Indian Ocean include:
* Arabian Sea: Located to the northwest, this sea is a major maritime route connecting to the Persian Gulf and the Red Sea.31
* Andaman Sea: Situated to the northeast.1
* Red Sea: An inland sea located to the north.1
* Persian Gulf: An inland sea located to the north.1

Gulfs and Bights

The region also encompasses several prominent gulfs and bights:
* Bay of Bengal: Located to the northeast, it is the largest of the gulfs in the region.12
* Gulf of Aden: Situated to the northwest.1
* Gulf of Oman: Located to the northwest.1
* Great Australian Bight: Found off the southern coast of Australia.1

Additionally, the Red Sea contains two smaller northern extensions: the Gulf of Suez and the Gulf of Aqaba.2