Bali is a peninsula.
Bali . With a population of 3,890,757 in the 2010 census , and 4,225,000 as of January 2014 , the island is home to most of Indonesia 's Hindu minority . Bali is the home of the Subak Irrigation System , a UNESCO World Heritage Site . The Lesser Sunda Islands or Kepulauan Nusa Tenggara or Kepulauan Sunda Kecil ( `` Southeastern Islands '' ) are a group of islands in Maritime Southeast Asia , north of Australia . The main Lesser Sunda Islands are , from west to east : Bali , Lombok , Sumbawa , Flores , Sumba , Timor , Alor archipelago , Barat Daya Islands , and Tanimbar Islands . Subak is the water management ( irrigation ) system for paddy fields on Bali island , Indonesia which was developed in the 9th century .