Jamestown Island
37°12′18″N 76°45′36″W / 37.205°N 76.760°W
Jamestown Island is a 1,561-acre (632 ha; 2.439 sq mi) island in the James River in Virginia, part of James City County. It is located off Glasshouse Point, to which it is connected via a causeway to the Colonial Parkway. Much of the island is wetland, including both swamp and marsh.