• Beach walkway to white sandy beach and bluegreen waters

    Gulf Islands

    National Seashore FL,MS

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  • Partial Closure on Horn Island

    Small portion of Horn Island, Mississippi, closed to entry due to discovery of asbestos and possible other bio hazards. Click on more for map and press release. More »

Mission and Purpose


The Seashore preserves certain outstanding natural, cultural, and recreational resources along the northern Gulf Coast of Florida and Mississippi. These include several coastal defense forts spanning more than two centuries of military activity, archeological values, pristine examples of intact Mississippi coastal barrier islands, salt marshes, bayous and submerged sea grass beds, complex terrestrial communities, emerald green water, and white sand beaches.


The purpose of Gulf Islands National Seashore is to preserve and interpret its Gulf Coast barrier island and bayou ecosystem and its system of coastal defense fortifications, while providing for the public use and enjoyment of these resources.

Did You Know?

The long roots of the sea oats help hold the dunes together.

The stunning sugar white beaches of Gulf Islands National Seashore are composed of fine quartz eroded from granite in the Appalachian Mountains. The sand is carried seaward by rivers and creeks and deposited by currents along the shore.