La Seine is a major river in France that flows through the heart of Paris. It stretches approximately 777 kilometers (483 miles) from its source in the Côte d'Or region to the English Channel. The river is known for its picturesque banks, which are lined with historic buildings, bridges, and parks. The Seine plays a vital role in Parisian culture and history. It is famous for landmarks such as the Eiffel Tower, Notre-Dame Cathedral, and the Louvre Museum, all of which are situated along its banks. The river is also a popular spot for boat tours, offering stunning views of the city.