Fonteo, in the municipality of Baleira, is, as its name indicates, a beginning. The Eo spring gathers up the waters from the mountain and begins a path of a little less than eighty kilometres to the Cantabrian Sea. Soon it will be surrounded by extensive oak woods and will receive water from other rivers. First the Rodil, that descends the hills of Burón, the historic name of the area of A Fonsagrada; then the Turia, from the Asturian region of Los Oscos, which joins the Eo in A Pontenova. Then come the famous fishing grounds of Abres (Asturias). Footbridges and small bridges allow visitors to station themselves in the middle of the river and enjoy the appearance of the hemmed in river banks and pools.
The salmon continues to be the king of the river. The daring journey through the ocean, some to the coasts of Canada and Greenland, to return to the sweet waters of its birthplace, involves an adventure in nature that the Cantabrian rivers transmit with all their might. The Eo takes part in this emotion. Liquid landscapes and a light that is especially sensitive to green tones. The final stage is a succession of meanders gradually subject to the influence of tides. From A Veiga/Vegadeo the inundated valley becomes a great estuary with bulrushes where armies of anatidae and other birds find refuge during storms.