Cumberland Island National Seashore

Cumberland Island, in the southeastern United States, is the largest of the Sea Islands of Georgia. The long-staple Sea Island cotton was first grown here by a local family, the Millers, who helped Eli Whitney develop the cotton gin. With its unusual range of wildlife, the island has been declared a National Seashore. Little Cumberland Island is connected to the main island by a marsh.

Duck House, part of the Richards estate, was a historic dwelling and is an archaeological site on Cumberland Island near St. Marys, Georgia. It was added to the National Register of Historic Places on February 13, 1984, and burned down a few years later from a fire started by an illegal camper. During World War II the U.S. Coast Guard was stationed at Duck House. There is a Duck House Road and a Duck House Trail on the island. Campgrounds were proposed for the Duck House area but ecological concerns scuttled the idea.

Plum Orchard is an estate located in the middle of the western shore of Cumberland Island, Georgia, USA. The estate and surrounding area are listed on the National Register of Historic Places. Designed by Peabody and Stearns for George Lauder Carnegie, a son of Thomas M. Carnegie and named after his uncle, Scottish industrialist George Lauder, it was formally dedicated on October 6, 1898. Peabody and Stearns also designed various additions to the mansion in the several following years, probably in 1906. After George Lauder Carnegie died, his widow, Margaret Copley Thaw, remarried and moved to Lake Naivasha, Kenya. Most of the original furnishings were sold, and furniture from Dungeness was brought in to furnish the house. The house was then occupied by the Johnston family, from Nancy Trovillo Carnegie Heaver/Johnston's branch of the family. The estate is now part of Cumberland Island National Seashore. The mansion also includes a rare squash tennis court.

The Crooked River is a 26.8-mile-long (43.1 km) river in Camden County in the U.S. state of Georgia. Primarily tidal, it is an inlet of Cumberland Sound. It rises in freshwater wetlands northwest of Kingsland and flows east into saltmarsh. Grover Island lies to the north of the main channel, and Crooked River State Park and Kings Bay Naval Submarine Base are to the south. The Crooked River ends at its junction with the Cumberland River at the north end of Cumberland Sound. Crooked River was so named on account of its meandering course.

Greyfield is an estate with a Colonial Revival-style house of the same name on Cumberland Island in Camden County, Georgia; it was listed on the National Register of Historic Places in 2003. The inn is also a member of Historic Hotels of America, the official program of the National Trust for Historic Preservation.It has also been known as Greyfield Inn since opening to the public as an inn in 1962. The house was built during 1901 to 1905 for Margaret Carnegie Ricketson and her husband Oliver Ricketson, and was one of several built for Carnegie family members within a large Carnegie family estate on Cumberland. Their daughter Lucy Carnegie Ferguson lived in the house for over seventy years. The Carnegie family owns and manages the Inn. The NRHP-listed area is 203 acres (0.82 km2) and includes six contributing buildings and four contributing structures.On Sept. 21, 1996, the First African Baptist Church on the north end of the island was the location of the John F Kennedy Jr and Carolyn Bessette wedding.

The Cumberland River is a 15-mile-long (24 km) tidal channel in the U.S. state of Georgia. It forms the northern half of the waterway that separates Cumberland Island from the Georgia mainland, connecting with Cumberland Sound to the south and St. Andrew Sound and the Satilla River to the north. It forms part of the Atlantic Intracoastal Waterway.

Dungeness on Cumberland Island, Georgia, is a ruined mansion that is part of a historic district that was the home of several families significant in American history. James Oglethorpe first built on Cumberland Island in 1736, building a hunting lodge that he named Dungeness. Oglethorpe named the place after the Dungeness headland, on the south coast of England. Dungeness was next the legacy of Revolutionary War hero Nathanael Greene, who had acquired 11,000 acres (45 km2) of island land in exchange for a bad debt. In 1803, his widow Catharine Littlefield Greene built a four-story tabby mansion over a Timucuan shell mound. During the War of 1812 the island was occupied by the British, who used the house as a headquarters. In 1818 Henry “Light-Horse Harry” Lee, a cavalry commander during the Revolutionary War and father of Robert E. Lee, stayed at the house until his death on March 25, 1818, cared for by Greene's daughter Louisa, and was laid to rest in nearby cemetery with full military honors provided by an American fleet stationed at St. Marys, Georgia. The house was abandoned during the U.S. Civil War and burned in 1866.In the 1880s the property was purchased by Thomas M. Carnegie, brother of Andrew Carnegie, who began to build a new mansion on the site. The 59-room Queen Anne style mansion and grounds were completed after Carnegie's death in 1886. His wife Lucy continued to live at Dungeness and built other estates for her children, including Greyfield for Margaret Carnegie Ricketson, Plum Orchard for George Lauder Carnegie, and Stafford Plantation. By this time, the Carnegies owned 90% of the island. The Carnegies moved out of Dungeness in 1925. In 1959 the Dungeness mansion was destroyed by fire, alleged to be arson. The ruins are today preserved by the National Park Service as part of Cumberland Island National Seashore. They were acquired by the Park Service in 1972.The main house comprises a portion of the larger historic district, which includes servant's quarters, utility buildings, laundries, cisterns, and a variety of other structures. The district forms a planned, landscaped ensemble. The most significant supporting structure is the Tabby House or Nathanael Greene Cottage, which dates to the Greene family's tenure.

Naval Submarine Base Kings Bay is a base of the United States Navy located adjacent to the city of St. Marys in Camden County, Georgia, on the East River in southeastern Georgia, and 38 miles (61 km) from Jacksonville, Florida. The Submarine Base is the U.S. Atlantic Fleet's home port for U.S. Navy Fleet ballistic missile nuclear submarines capable of being armed with Trident missile nuclear weapons. This submarine base covers about 16,000 acres (6,500 hectares) of land, of which 4,000 acres (1,600 hectares) are protected wetlands.

Crooked River State Park is a 500-acre (2.0 km2) Georgia state park located near St. Mary's on the south bank of the Crooked River, providing an excellent coastal setting. The park is dedicated to the preservation of its natural resources and public education. The park is near the ruins of the McIntosh Sugarworks, built around 1825 and used as a starch factory during the American Civil War. It is the closest state park to Cumberland Island National Seashore and it is adjacent to the Naval Submarine Base Kings Bay.

The St. Marys River (named Saint Marys River by the United States Geological Survey,) is a 126-mile-long (203 km) river in the southeastern United States. The river was known to the Indians of the area as Thlathlothlaguphka, or Phlaphlagaphgaw, meaning "rotten fish". French explorer Jean Ribault named the river the Seine when he encountered it in 1562. From near its source in the Okefenokee Swamp, to its mouth at the Atlantic Ocean, it forms a portion of the border between the U.S. states of Georgia and Florida. The river also serves as the southernmost point in the state of Georgia. The St. Marys River rises as a tiny stream, River Styx, flowing from the western edge of Trail Ridge, the geological relic of a barrier island/dune system, and into the southeastern Okefenokee Swamp. Arching to the northwest, it loses its channel within the swamp, then turns back to the southwest and reforms a stream, at which point it becomes the St. Marys River. Joined by another stream, Moccasin Creek, the river emerges from the Okefenokee Swamp at Baxter, Florida/Moniac, Georgia. It then flows south, then east, then north, then east-southeast intersecting I-95 near Yulee, and finally emptying its waters into the Atlantic, near St. Marys, Georgia and Fernandina Beach, Florida.

Kings Bay Base is an unincorporated community and census-designated place (CDP) in Camden County, Georgia, United States; it is home to the Kings Bay Naval Submarine Base. The population was 1,777 at the 2010 census, and 2,329 in 2020.

The Fort Clinch State Park is a Florida State Park, located on a peninsula near the northernmost point of Amelia Island, along the Amelia River. Its 1,100 acres (4 km2) include the 19th-century Fort Clinch, sand dunes, plains, maritime hammock and estuarine tidal marsh. The park and fort lie to the northeast of Fernandina Beach at the entrance to the Cumberland Sound.