Perdido Bay

Perdido Bay is a bay at the mouth of and draining the Perdido River, a designated Outstanding Florida Waters river, in Baldwin County, Alabama and Escambia County, Florida, United States.

It is essentially a coastal lagoon enclosed by barrier islands, with an inlet, Perdido Pass.

Perdido Bay lies east of the Alabama communities of Orange Beach and Lillian.

The daily high tide was causing oil-contaminated water to enter Perdido Bay.

The barrier system is designed to allow boats to travel through Perdido Pass, during the outflowing tide, but to close during the incoming tide and collect oil deposits in a retention area on the eastern edge of the pass.