Specifically relating to Gulf Islands National Seashore in Florida and Mississippi, this stamp is part of the group of stamps honoring the National Park Service Centennial.

Gulf Islands National Seashore features sparkling blue waters, magnificent snowy-white beaches, fertile coastal marshes, and beautiful winding nature trails.

Island beaches, sparkling waters, bayous, historic forts, and recreational opportunities are plentiful in Gulf Islands National Seashore, the nation's largest. Open year-round, the Seashore is in Mississippi and Florida. Gentle breezes, tides, and hurricanes constantly reshape this dynamic landscape.

More than 80 percent of the park is submerged lands teeming with marine life. Marshes collect fresh rainwater and support diverse communities of plants and animals. Live oak forests are home to resident and migrating bird populations.