The Kifisos River is a river in Greece that flows through the region of Attica. It originates from the Parnitha Mountain and travels approximately 80 kilometers before emptying into the Saronic Gulf. The river has played a significant role in the history and development of the surrounding areas. Historically, the Kifisos River was important for agriculture and transportation. However, urbanization and industrial activities have led to pollution and environmental challenges. Efforts are ongoing to restore the river's ecosystem and improve water quality, highlighting its importance to the local community and biodiversity.