Qiongzhou Strait
Haidian Island () is an island that forms part of the city of Haikou, Hainan Province, China. It is separated from the main part of Haikou by the Haidian River. The north coast faces the Qiongzhou Strait. The east coast faces Xinbu Island, separated by part of the Nandu River. The west coast faces Haikou Bay.