Australia and Indonesia are neighboring countries located in the southern hemisphere. Australia is an island continent, while Indonesia is an archipelago made up of over 17,000 islands. The two countries share maritime borders and have a diverse range of cultures, languages, and ecosystems. The relationship between Australia and Indonesia is significant, involving trade, tourism, and cooperation on various issues such as security and environmental protection. Both nations are members of regional organizations like ASEAN and APEC, which promote economic growth and collaboration in the Asia-Pacific region.