The Shing Mun River is a river located in the New Territories of Hong Kong. It flows through the region, starting from the hills near the town of Sha Tin and eventually merging with the Tolo Harbour. The river is approximately 10 kilometers long and plays a significant role in the local ecosystem. The river is surrounded by parks and recreational areas, making it a popular spot for outdoor activities such as walking, cycling, and birdwatching. The Shing Mun River also helps manage stormwater and supports the area's biodiversity, contributing to the overall environmental health of the region.