The River Aare is the longest river entirely within Switzerland, flowing for about 295 kilometers. It originates from the Aare Glacier in the Bernese Alps and travels through several cities, including Bern, the capital of Switzerland. The river is known for its clear blue waters and scenic landscapes, making it a popular spot for outdoor activities. The Aare eventually joins the Rhine River near Koblenz, where it contributes to the larger river system in Europe. Along its course, the Aare supports various ecosystems and provides water for agriculture and hydroelectric power, playing a vital role in the region's economy.