We’ve visited two of the tours in the tunnels.
The Great Bridge Tour was fine. We went deep underground & saw the enormous excavation site under the Kotel. The Wall goes so deep under ground that it will take your breath away. Also, during the rich history, there were many things build and destroyed near it & you’ll see something of each.
Our guide was very knowledgeable & captivating. Also, she made really good jokes. Unfortunately I am bad with names, but she was one of the archeologists working there with her students - proper lady with nice brittish accent.
The Chain of Generations on the other hand is more like a educational programme for children. You go through the videos in different rooms in quite fast pace. The narrator automatically expects that every visitor is of the jewish religion which was somewhat awkward - but maybe we missed something in the description of our tour. It’s focused on amplifying the main jewish values, so don’t expect to learn something about the history.
Practical info- Bridge tour:
Buy your tickets online in advance & after the arrival, go to the guy near the entrance. He should have your name on the list - he’ll give you the entrance bracelet (similar to Music festival entry bracelets) & when the visit is about to start, they will announce it in english & loudly enough. :)
Practical info - Generations tour:
Again - buy your tickets online. And just wait near the door on the right (right after you enter the building) - there wasn’t no “call” this time. :D