is there an official tur to go deep down into the tatacombs of Paris? i heard only the entrance but i mean super deep like miles deep. thank you!
There is only one official tour. Booking in advance is necessary. It only tours a small part of the network, which extends for miles and miles. But the gallery network is never very deep, and exploring outside of the official tour area is illegal.
While the passages reportedly total a couple hundred kilometers, they aren't that deep. Like only about 65 feet deep. Anything deeper would be flooded. As it is, there are wells and flooded rooms. Only the official tours are allowed. There are fines for anyone caught in unauthorized areas, and apparently there are patrols to monitor for this.