The river Seine flows 776 kilometres through northern France, and offers a great opportunity to become familiar with many of Paris' impressive monuments while enjoying a boat ride through the heart of the city. A romantic cruise for couples, or a fun-filled ride for the whole family, just sit back on the water and enjoy the scenic setting of Paris. Most boat lines offer similar itineraries and are equipped with an audio announcement system, as the multilingual guides provide commentary on the passing sights in several different languages.