indonesia

Indonesia is the largest archipelago in the world. It consists of five major islands and about 30 smaller groups. The figure for the total number of islands is 17,508 according to the Indonesian Naval Hydro-Oceanographic office. The archipelago is on a crossroads between two oceans, the Pacific and the Indian ocean, and bridges two continents, Asia and Australia. This strategic position has always influenced the cultural, social, political and economic life of the country.

The territory of the Republic of Indonesia stretches from 6^o08' north latitude to 11^o15' south latitude, and from 94^o45' to 141^o05' east longitude. The Indonesian sea area is four times greater than its land area, which is about 1.9 million sq. km. The sea area is about 7.9 million sq. km (including an exclusive economic zone) and constitutes about 81% of the total area of the country.

The five main islands are: Sumatra, which is about 473,606 sq. km. in size; the most fertile and densely populated islands, Java/Madura, 132,107 sq. km; Kalimantan, which comprises two-thirds of the island of Borneo and measures 539,460 sq. km; Sulawesi, 189,216 sq. km; and Irian Jaya, 421,981 sq. km, which is part of the world's second largest island, New Guinea. Indonesia's other islands are smaller in size.

The archipelago is divided into three groups. The islands of Java, Sumatra and Kalimantan, and the small islands in-between, lie on the Sunda Shelf which begin on the coasts of Malaysia and Indo China, where the sea depth does not exceed 700 feet. Irian Jaya which is part of the island of New Guinea, and the Aru Islands lie on the Sahul Shelf, which stretches northwards from the Australian coast. Here the sea depth is similar to that of the Sunda Shelf.