* Java Sea: Located between the islands of Java, Sumatra, Borneo, and Sulawesi, the Java Sea is a semi-enclosed sea that connects the Indian Ocean to the Pacific Ocean. It is one of the busiest shipping lanes in the world and is home to several major ports, including Jakarta, Indonesia's capital city.
* Celebes Sea: Located between the islands of Sulawesi, Borneo, and the Philippines, the Celebes Sea is a deep sea that reaches depths of over 6,000 meters. It is home to several coral reefs and is a popular diving spot.
* Banda Sea: Located between the islands of Sulawesi, Maluku, and Timor, the Banda Sea is a deep sea that reaches depths of over 7,000 meters. It is home to several active volcanoes and is known for its rich marine life.
* Arafura Sea: Located between the islands of New Guinea and Australia, the Arafura Sea is a shallow sea that reaches depths of less than 200 meters. It is home to several coral reefs and is a popular fishing ground.
* Timor Sea: Located between the islands of Timor, Australia, and New Guinea, the Timor Sea is a deep sea that reaches depths of over 3,000 meters. It is home to several oil and gas fields and is a major shipping route.
* Indian Ocean: The Indian Ocean is a major ocean that borders Indonesia to the south. It is the third largest ocean in the world and is home to several major shipping lanes.