Caves around Valdagno offer a diverse range of subterranean explorations within the Vicenza province. The region is characterized by significant karst phenomena, leading to extensive cave systems and natural rock shelters. These geological formations provide insights into the area's natural history and offer unique natural features. Valdagno serves as a gateway to these varied underground landscapes, which include both accessible show caves and more challenging speleological sites.
Last updated: June 30, 2026
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The Buso della Rana is the largest cave in the Veneto region and one of the most extensive in Italy, with a network of caves stretching almost 30 km in total (40 km including the Pissatèla complex above, to which it is connected). Located beneath the Faedo-Casaròn Plateau, it is an intricate karst system that collects and channels the plateau's waters into the Rio Rana, which flows at the entrance. It was formed when rainwater seeps into the permeable limestone surface layer and, encountering the underlying impermeable basalt (volcanic rock), flows laterally, eroding the rock. Over millions of years, this has created a complex labyrinth of horizontal tunnels, chambers, chimneys, siphons, and small lakes traversed by underground streams. Because it drains the plateau's waters, the cave is subject to flash floods, making exploration treacherous. Inside, the temperature remains constant between 10 and 12°C year-round. It is freely accessible through the monumental entrance and by proceeding along the Main Branch for about fifty meters, until reaching the first flooded corridor or Siphon, a horizontal constriction that requires crawling. From there, it is the preserve of speleologists or exciting and adventurous guided tours organized by associations like Biosphera (see link). The internal branches are not marked, and one must know the way. The name of the cave has nothing to do with the amphibian, but is an Italianized term from the Cimbrian word "roan," meaning "rocky wall," referring to the cliff at the entrance. https://www.busodellarana.it https://esplora.biosphaera.it/luoghi/buso-della-rana/
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The Buso delle Anguane is a fascinating cave in the rock with a natural balcony overlooking the Chiampo Valley: a place of mystery and legends, in ancient folk tales it was the home of the anguane, evil creatures that attracted men with their comely appearance. https://it.wikipedia.org/wiki/Anguana The path to reach the cave is quite impervious and challenging, not very visible and not signposted along the asphalt road.
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The Cascata dei Papalini suddenly appears in a small clearing in the heart of the forest, along the path: over time the falling water has formed a columnar deposit of gray limestone that descends like a drape and that partly acts as a springboard for the jet. But the peculiarity and spectacular nature of this waterfall is the possibility of seeing it even from behind the scenes: in fact, by climbing to the left on a short but steep path, you reach a natural roof of the rock from which you can observe the forest below through the curtain of water, without getting wet! The passage is not protected and is wet, so you need to pay particular attention. Like all torrential waterfalls, it is not always full and active: you need to look for the right period, perhaps after heavy rains, to visit it in all its thunderous splendor.
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Point quite easy to reach unless it has rained recently, in which case I would advise caution. Very suggestive view from inside the "Buso"
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Beautiful waterfall, it looks like a face with one eye, a big nose and teeth😊
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This path runs along a long and steep edge of the Civillina, but the climb is greatly eased by a large number of hairpin bends (42) and therefore is never difficult or too tiring. It is called the Sentinello because it is nothing more than a mule track that connected all the firing positions of the Great War along its entire length.
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The Papalini waterfall is a small waterfall in the middle of the woods, it deserves to be seen
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beautiful waterfall of the Rana stream
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The Valdagno area, within the Vicenza province, offers a variety of subterranean explorations. You can find extensive karst cave systems like the Buso della Rana Cave, natural rock shelters such as the Covoli di Lumignano, and even unique natural monuments like the Papalini Waterfall, which features a walk-behind waterfall and cave-like elements. The region also has historical cave sites, including those used during WWI.
The Buso della Rana Cave is one of the largest cave systems in the Veneto region, with over 28 km of galleries, featuring intricate karst formations, underground streams, and even ancient marine fossils. Another significant site is the Caves of Oliero, known for their underground rivers and impressive stalactites and stalagmites, accessible by boat.
Yes, the Covoli di Lumignano in the Colli Berici are highly significant archaeologically, having been frequented by Neanderthal man and cave bears for over 200,000 years. Some were even inhabited until the 1950s. Additionally, the Sentinello Trail (WWI) features military artifacts and cave shelters used during the Great War.
The Buso della Rana Cave offers educational packages and guided tours, primarily along its main branch. These can include an exciting crawl through a siphon and a boat crossing of the Caronte Lake. The Caves of Oliero also provide guided boat tours into the main Grotta Parolini, allowing visitors to observe its formations.
The Caves of Oliero are generally considered family-friendly, offering boat tours that make them accessible for a wider range of visitors. The Buso della Rana Cave also has a tourist-didactic center and offers guided tours suitable for those looking for an educational experience, though deeper exploration requires more adventure.
The Lucio's Hole, or 'Buso del Lucio', is a curious karst cavity known for its 'dragon's breath' phenomenon. Fresh air, consistently between 7 and 13°C, emerges from a narrow opening, creating an audible rustle, especially in summer, due to the exchange of hot and cold air masses. It's a unique natural vent in the Faedo-Casaròn plateau.
Many caves, like the Buso della Rana Cave and the Caves of Oliero, maintain a stable temperature of around 10-13°C year-round, making them suitable for visits in various seasons. However, for caves with outdoor access or those prone to flooding, checking local conditions, especially during heavy rain, is advisable. Spring and autumn generally offer pleasant weather for exploring the surrounding areas.
The region around Valdagno offers numerous outdoor activities. You can find various cycling routes, including touring bicycle routes, road cycling routes, and MTB trails. The area around the Covoli di Lumignano is also well-known for its climbing cliffs and hiking opportunities, offering beautiful natural scenery.
The Buso delle Anguane Cave is notable for offering suggestive views. From inside, it provides a window onto the opposite valley and the low districts of Marana, with a panoramic position that allows sight of the Gingerino refuge. The path to this cave can be quite challenging.
Most of the caves in the region maintain a consistent, cool temperature throughout the year. For instance, the Buso della Rana Cave stays around 10-12°C, and the Caves of Oliero are approximately 12°C. It's advisable to bring appropriate clothing, even on warm days, to stay comfortable during your exploration.
The Caves of Oliero are located in Valbrenta (formerly Valstagna), within the province of Vicenza. They are significant because they are among the largest in the Val Chiusa region of Europe, featuring two active springs that form underground rivers. Visitors can take boat tours into the main Grotta Parolini to see impressive stalactites and stalagmites, and the site also includes a nature park and museum rooms.
The 'Covoli di Lumignano' are natural cavities and rock shelters found in the Colli Berici. These include sites like Grotta della Mura and Covolo della Loara. They are known for their archaeological importance, having been used by early humans, and for their unique karst formations. The Covolo della Loara, for example, features a large central hall with a chimney-like shaft that allows a faint ray of light to create a spectacular effect.


Extend your search for the best caves by checking out these guides of the top ones around Valdagno: