Mobile Bay is an inlet of the Gulf of Mexico and an estuary that extends from the entrance of the Mobile River and the Tensaw River in the north southwards to the mouth of the bay at the Fort Morgan Peninsula on a barrier island named Dauphin Island.

At 413 square miles, Mobile Bay is the fourth largest bay in the United States. The bay is known for an unusual annual natural occurrence: in the summer, fish and crustaceans swim close to the shoreline and are easily caught. This is called a “jubilee” and Mobile Bay is the only place in the world where this happens on a regular basis.

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