Aare is the longest river in Switzerland, flowing approximately 295 kilometers (183 miles). It originates from the Aare Glacier in the Bernese Alps and travels through several cities, including Bern, the capital of Switzerland. The river eventually joins the Rhine River near Koblenz. The Aare is known for its clear blue waters and scenic landscapes, making it a popular destination for outdoor activities such as swimming, kayaking, and hiking. The river also plays a crucial role in hydropower generation, contributing to Switzerland's renewable energy resources.