It is a corridor 400 meters long and 80 meters deep that appeared at the end of the Ice Age, when the ice melted in Salzburg, Austria, this nature appeared with something impressive. About 14,000 years ago, scientists dated the birth of this picturesque place from the heart of nature, masses of water cut their way into the rockworks and created this amazing natural monument. You can go on a nature trail in this place that you will definitely like, as it is really worth a visit while you are in the city.