Dear sir, I am not sure you actually visited the palombaro lungo. You describe it as “an industrial setting” where “you walk above some old well”. On the opposite, It is an ancient setting where you walk inside (and not above) a well. It is an experience once in a lifetime to be inside a cistern that kept 5 millions liters of water, entirely dug by man hundreds of years ago, where you can actually see the mouths of the well from the inside. This is very well explained on the leaflet we provide in different languages. Anyway it is true, this old water cistern is not Disneyland. If you were looking for Disneyland, you probably were at the wrong address. And wrong city. And wrong region. And wrong country. But in the right continent: it is in Paris.