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. Renmin Avenue is the main street that runs through the middle of the island from the south at the Renmin Bridge to the north shore at the newly built Baishamen Park, which contains an amusement park. Hainan University's main campus is located on the west side of this avenue. The western part of the island has been expanded as part of a land reclamation project started in the late 2000s.