The River Beneden Merwede is a significant waterway in the Netherlands, primarily flowing through the province of South Holland. It is a branch of the Rhine River, formed by the river's split into several channels. The Beneden Merwede plays a crucial role in regional transportation and drainage. This river eventually merges with the Hollandse IJssel and contributes to the Nieuwe Maas, which leads to the Port of Rotterdam. The Beneden Merwede is vital for shipping and commerce, supporting both local economies and international trade routes.