The speleologists held their breath when the stone began to fall in the total darkness.
The echo came after a period of time that seemed like an eternity: it was 27 September 1975, and the Frasassi Caves, one of the most spectacular Karst complexes in the world, had just been discovered.
Today the caves are open to the public and the public can visit them, accompanied by professional guides, along an easy tourist route that lasts about 75 minutes.
Visitors can experience the thrill of a hidden and beautiful upside down world, made of breath-taking scenery, rich in extraordinary concretions, where the silence is broken only by the dripping of the drops of water that bring the constantly changing complex to life.
Subject to booking, there are two adventure trails - the blue trail (for those over the age of 12) and the red trail - which allow small guided groups to pass through underground passages, narrow pathways and shafts and admire splendid rooms concealed from the gaze of "normal" tourists.
Nature. History. Culture. The area of Frasassi.
The beauty of this area does not stop at the Frasassi Caves, but continues with the beautiful Gola della Rossa Nature Park and its amazing scenic views and ancient villages that plunge visitors into a timeless world, inviting them to stay for several days. Man's hand has also created architecture of inestimable value: from the Abbey of San Vittore delle Chiuse, considered the most beautiful example of Romanesque architecture in the region, to the ancient Roman bridge and the Speleo-paleontological Museum situated in San Vittore 500 metres from the entrance to the caves; from the Valadier Temple to the Sanctuary of S. Maria Infrasaxa, built next to each other in a natural cave along the road that leads to the heart of the historical centre of Genga and its splendid village.