List of United States national lakeshores and seashores National seashores National seashores

| Name_ | Location_ | Date_Formed | Area | Description_ |
|---|---|---|---|---|
| Assateague Island | Maryland, Virginia , 38°05′N 75°13′W﻿ / ﻿38.08°N 75.21°W | September 21, 1965 | 39,726.75 acres (160.8 km2) | As a barrier island, Assateague Island is continually shaped by wind and waves. It is known for its feral horses and is also home to deer, crabs, fox, and migrating snow geese. Main vegetation includes American beach grass, saltmarsh cordgrass and sea rocket. |
| Canaveral | Florida , 28°46′N 80°47′W﻿ / ﻿28.77°N 80.78°W | January 3, 1975 | 57,661.69 acres (233.3 km2) | Adjacent to the Kennedy Space Center, this barrier island has a variety of recreational activities including hiking, boating, and fishing. The Seminole Rest features an ancient Native American mound, and Eldora Statehouse shows historic life on the lagoon. Florida`s longest undeveloped Atlantic beach surrounds Mosquito Lagoon, which is home to dolphins, manatees, and sea turtles, along with a variety of sea grasses. |