The Dong Nai Estuary is located in southern Vietnam, where the Dong Nai River meets the South China Sea. This estuary plays a crucial role in the local ecosystem, providing a habitat for various fish species and supporting the livelihoods of nearby communities through fishing and agriculture. The estuary is also significant for transportation and trade, as it serves as a navigable waterway for boats and ships. Its strategic location contributes to the economic development of the surrounding regions, making it an important area for both environmental and economic activities.