Sullivan's Island is a town and island in Charleston County, South Carolina, United States, at the entrance to Charleston Harbor, with a population of 1,791 at the 2010 census. The town is part of the Charleston metropolitan area, and is considered a very affluent suburb of Charleston.
Sullivan's Island was the point of entry for approximately 40 to 50 percent of the 400,000 enslaved Africans brought to Colonial America, meaning that 99% of all African Americans have ancestors that came through the island. It has been likened to Ellis Island, the 19th-century reception point for immigrants in New York City. During the American Revolution, the island was the site of a major battle at Fort Sullivan on June 28, 1776, since renamed Fort Moultrie in honor of the American commander at the battle.
Wikipedia https://en.wikipedia.org/wiki/Sullivan's_Island,_South_Carolina
Coordinates 32°46'4.521" N -79°50'10.555" E