We arrived to meet our tour guide only to learn that the tour would be only in French! There was nothing on the confirmation indicating this. We met other English speakers on the tour who showed me their confirmation and it clearly stated that this tour would be in French. They chose to go on it knowing ahead of time that it was in French. We would not have done this. We had our 15-year-old grandson with us and he was completely bored by the long French narrative. I have gone back to review all e-mail correspondence with Viator and nowhere were we notified of the tour being in French. I went to the Web site and put in future date for a tour and nothing was mentioned that the tour could be in French. I signed up for this tour in the US on an English language site and made the assumption the tour would be in English. We also booked a Catacombs tour for the next day and it was in English. So, what is the deal? Nowhere in the Terms and Conditions could I find info that the tour could be in French.

This was the highlight of my Paris trip. When will you ever get to climb up 400 steps, after hours at Notre Dame, climb into the bell tower and then all the way to the top? Our guide was knowledgable and genuinely interested in giving us as much information as possible. I will never forget this experience.

Note: be prepared to climb up and them down these steps, a narrow circular staircase with no resting points. If you think you can do it but tire easily, stay at the back of the line. If you can do this tour, you will not regret it. Also, this tour does not go inside the Cathedral itself, so be sure to go in before your tour starts.

Didn't get to do this due to a booking error.

Our tour guide was extremely knowledgeable and answered questions without hesitation. Climbing the tower was a challenge but the view was well worth the effort. I loved seeing the gargoyles up close!

A nice tour, very interesting with great views. I would recommend.

A very interesting way to see Notre Dame. I wish we could have also gone into the church as well.

This was brilliant, but be aware that the stairs get quite narrow towards the top and it's a bit of a climb but the views are wonderful, even on a cloudy day. This doesn't include access to the actual catheters but we just popped in there afterwards, we thought it would be closed but it wasn't and there was no colossal queue like there is in the day time, we just walked right in. But the towers are deff worth a look, highly recommended

Fantastic experience

Amazing

Unfortunately, the guide was a no-show and those of us waiting were unable to reach a local contact using the numbers provided, as the local office closed two hours prior to this evening tour