Indonesia a rich cultural heritage that reflects Indonesia's dynamic history and ethnic diversity. Indonesia has a well-preserved natural ecosystem with rain forests that stretch over about 57% of Indonesia's land (225 million acres). Forests on Sumatra and Kalimantan are examples of popular destinations, such as the Orangutan wildlife reserve. Moreover, Indonesia has one of world's longest coastlines, measuring . The ancient Prambanan and Borobudur temples, Toraja and Bali, with its Hindu festivities, are some of the popular destinations for cultural tourism. Indonesia has 8 UNESCO World Heritage Sites, including the Borobudur Temple Compounds and the Komodo National Park; and a further
Directorate General of Immigration (Indonesia) the passenger to produce any necessary documents (such as hotel reservation and proof of finance). Indonesian passport is a travel document issued by the Government of Indonesia to Indonesian citizens residing in Indonesia or overseas. The main governing body with regards to the issuance of such passport(s), possession(s), withdrawal and related matters is the Directorate General of Immigration under Ministry of Law and Human Rights. Indonesia is one among many countries in the world that does not recognize multiple citizenship for its citizens and such citizens will automatically lose her/his Indonesian citizenship if another citizenship is acquired voluntarily. Special exceptions