Yes, it is not possible to arrive at the meeting point without booking - booking is easy, fast and free!

✔️ It secures your place and allows the guide to better organise himself. Also, if you don't book, you won't receive important information from your guide and you won't be notified if there are any changes to the tour. 

If the guides do not receive a booking, they may not go to the meeting point, on the understanding that there will be no participants. In addition, they may also be fully booked.