Cai Chien is an island commune located in the south of the Hai Ha district, about 8km from Ghenh Vo port. The island’s natural area is about 2500 hectares, but most of it is hills and beaches. In recent years, the commune has also been invested in relatively synchronous infrastructure, such as: docks, ferries, concrete roads across the island, schools, clinics, and many other public welfare works. In April 2016, the commune has just been connected to the national grid.