The Bou Regreg River is a significant waterway in Morocco, flowing between the cities of Rabat and Salé. It originates in the Middle Atlas mountains and empties into the Atlantic Ocean. The river serves as a natural boundary between the two cities and is vital for local ecosystems and agriculture. The Bou Regreg River is approximately 240 kilometers long and is known for its scenic beauty. It supports various recreational activities, including boating and fishing. The river also plays a crucial role in the region's economy, providing water for irrigation and supporting local fisheries.