The Ou River is a significant waterway located in the northeastern part of Vietnam. It flows through several provinces, including Thua Thien-Hue and Quang Tri, before emptying into the Pacific Ocean. The river is approximately 100 kilometers long and plays a crucial role in the local ecosystem and economy, providing water for agriculture and fishing. The Ou River is also known for its scenic beauty, with lush landscapes and diverse wildlife along its banks. It serves as a vital transportation route for local communities, facilitating trade and travel. The river's health is essential for maintaining the region's biodiversity and supporting the livelihoods of those who depend on it.