Dauphin Island is a town in Alabama, on the Gulf Coast island of the same name. It’s known for stretches of white sand, like Public Beach. At the entrance to Mobile Bay, 19th-century Fort Gaines features original cannons and a blacksmith shop. Migrating birds can be seen in the forest, dunes and swamp of the Audubon Bird Sanctuary. The Dauphin Island Sea Lab's Estuarium offers aquariums and a living marsh boardwalk.