DO NOT BOOK THIS TOUR...you know why? Because there is no trip to the Eiffel Tower so Viator needs remove it from the title until they do. Most of us didnt realize this until we boarded the bus. Apparently no group tours are provided while one of the elevators are broken. The tour guide got many complaints about this. As a substitute, you go to the roof of the Montparsse tower which is just a tall office building. Who cares! We had to buy tickets to the Eiffel again the next day since this was a must-do for us. The Seine River cruise was uneventful. Instead I recommend you buy the L'open hop on-hop off tour. You get to see all of paris up close instead of from the top of an office bldg or from the river where you cant see much of anything. The hop on bus allows you to get off at all the great locations. It was a much better value.