From the Wikipedia page 
Vilankulo District or Vilanculos District is a district of Inhambane Province in south-east Mozambique. Its principal town is Vilankulo. The district is located at the east of the province, and borders with Inhassoro District in the north and Massinga District in the south and in the west. In the east, the district is bounded by the Indian Ocean. The area of the district is 5,867 square kilometres (2,265 sq mi). The district is divided into two postos, Vilankulo (three localities) and Mapinhane (three localities).