A cruise on the River Seine is a must when you visit Paris. Many beautiful monuments can be seen from the river such as the Eiffel Tower, the Musée d'Orsay, Notre Dame, the Louvre... You see Paris from another angle and you can choose from a variety of cruises too.
As its name indicates Batobus is a means of transport but on the river Seine. It has 8 stops and you can hop on or hop off at any stops as many time as you want for the duration of your pass.