Río Sella is a river located in the northern region of Spain, specifically in the autonomous community of Asturias. It flows for approximately 66 kilometers, originating in the Picos de Europa mountains and emptying into the Bay of Biscay. The river is known for its scenic beauty and is surrounded by lush landscapes. The Río Sella is famous for its annual canoeing event, the Descenso del Sella, which attracts participants from around the world. This event celebrates the river's natural features and promotes outdoor activities. The river also supports diverse wildlife and is an important ecological habitat in the region.