The Riu de la Sènia is a river located in the northeastern part of the Iberian Peninsula, primarily flowing through Catalonia in Spain and Valencian Community. It serves as a natural border between these two regions and is approximately 30 kilometers long. The river is known for its scenic landscapes and plays a vital role in the local ecosystem. The Riu de la Sènia eventually merges with the Mediterranean Sea, contributing to the region's biodiversity. Its basin supports various flora and fauna, making it an important area for conservation. The river also has historical significance, having been a crucial water source for nearby communities.