Sea Island is a privately owned, unincorporated area of Glynn County, Georgia; and is part of the Golden Isles of Georgia, including St. Simons Island, Jekyll Island, Little St. Simons Island, and the mainland city of Brunswick. The well-visited, seaside resort island is located along the Atlantic Coast just east of St. Simons Island. It lies about 60 miles (97 km) north of Jacksonville, FL and about 60 miles (97 km) south of Savannah, GA, and is reachable via a causeway from St. Simons Island. The Anschutz family of Denver, Colorado owns two resorts with limited public access and maintains a gated community for some 500 single family residences.
The resorts, "Sea Island Beach Club" and "The Cloister", are located a short distance from one another, connected by a roundabout in the middle of Sea Island Drive, the island's main connecting road. The oceanfront Beach Club contains restaurants, a game room, an ice cream shop, a bar, and three pools. Sea Island's main hotel, The Cloister, is located on its southwestern side along the Black Banks River. It includes restaurants, 200 rooms, a spa, tennis and squash courts, an exercise facility, and is home to the only Forbes Five Star restaurant in the state of Georgia, "The Georgian Room". It is the only resort in the world to have received four Forbes Five-Star awards for ten consecutive years. The Ocean Forest Golf Club, a private, links-style course is located within the residential community on the northern tip of the island.
Georgia's Sea Island is part of a long chain of barrier islands, also known as "sea islands", located along the coasts of South Carolina, Georgia and northern Florida between the Santee and St. Johns rivers.