The island of Timor is the easternmost of the Great islands of the Sunda, or the largest and westernmost of the small islands of the Sunda. Elongated from Southwest to Northeast, it is, along with Soemba island, to the West, out of the row of volcanoes islands from Java, and it makes a sharp angle with this series.
Its north coast is bathed in its western part by the Indian Ocean, and in its eastern part by the Sea of Flores (Pacific Ocean); its South Coast is bathed by the Sea of Timor (Indian Ocean). Straits separate it from the surrounding islands and bear the same names as these, Rotti and Samao (southwest point), Allor or Ombaï and Wetter (to the North). It is 430 km south-east of Australia (Melville Island).