Best canyons around Thiene are primarily found in the surrounding Astico Valley, which features notable gorge-like natural formations. These areas are characterized by rivers carving through rock, creating deep ravines, waterfalls, and unique natural monuments. The region offers a variety of natural landscapes, from wild, unspoiled forests to paths alongside flowing water. These natural features provide opportunities for exploring the area's geological formations and diverse ecosystems.
Last updated: May 19, 2026
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*Update February 2025: the main path has been cleared and widened, and the valley is no longer so difficult and adventurous; only the final part remains wild, with numerous fallen trees.
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The Sant'Andrea Valley in Grumolo di Pedemonte is a wild, chaotic, intricate, humid, and gloomy environment. The adventurous trail is often interrupted by a stream that must be forded and large fallen trees that must be climbed over or circumnavigated; you'll need to be resourceful to continue. Furthermore, some sections and variants may be interrupted by a wall of brambles and nettles. Nature reigns supreme: the deep green moss contrasts with the black, shiny basalt—a sign of the Bregonze's volcanic origins—that emerges from the ground and characterizes the riverbed. The Valley is named after Sant'Andrea because in centuries past there stood a small rustic church dedicated to the saint, accessible by a path descending from the "Bosco del Prete" (Priest's Woods). A cross has been placed on the site of the former church, a small clearing surrounded by dense forest. https://www.altovicentinonline.it/rubriche/itinerari/da-grumolo-alla-valle-di-santandrea-e-al-rivon/
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Path that connects the Lorenza cave to the fire road, a gully full of stones recommended for people with a little practice and not recommended when wet as it is really slippery, once on the fire road you can continue straight to almost get to the top of the mountain
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Unexpected and suggestive waterfall of considerable height that plunges into the gorge dug by the Acquasaliente stream, in the wild valley of the same name. It can only be admired from above and from afar, because the deep ravine makes it inaccessible!
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The Val dei Molini is a surprisingly unspoiled and wild environment, where you enter a mysterious and evocative forest: water dominates, forming lively waterfalls and deep ravines; everywhere, lush moss covers rocks and tree trunks. You cross a series of small valleys (Val Sesura, Valle Arlene, Val dell'Asino, Val del Gambero, Val Smiderle, Val Bisele) and ford several streams that eventually flow into the Refosco stream. The Val d'Asino is particularly evocative, where two streams join in an enchanting clearing, forming waterfalls and a deep, winding ravine. The name reflects how the stream was once exploited: the remains of man-made structures, such as stone masonry and building foundations, bear witness to this. Obviously, the valley is at its best after days of rain.
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All streams and waterfalls in the middle of the woods, even in some places you can swim
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A beautiful corner of wild and uncontaminated nature in the middle of the woods, among water features, ferns and lush moss: two lively streams descend from the small valleys and join, digging a deep and tortuous gorge, to finally flow downstream into the Refosco stream . Obviously it is at its best after rainy days.
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Beautiful waterfall and small stream to cross; perfect for children to experience a pinch of adventure. Also reachable from Acquasaliente.
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The canyons in the Astico Valley, near Thiene, are characterized by rivers carving through rock, creating impressive gorge-like formations. You'll find deep ravines, lively waterfalls, and unique natural monuments. Areas like Val dei Molini and Water Gorge (Val dell'Asino) are known for their lush moss covering rocks and tree trunks, clear streams, and wild, unspoiled forests. Contrà Pria, for instance, features pools up to 9 meters deep, perfect for swimming.
While many canyons in the region offer adventurous terrain, some areas are more accessible. For example, Contrà Pria in Arsiero, within the Astico Valley, is known for its inviting pools and a path along the Astico River, making it suitable for families looking to swim and enjoy nature. Always check specific trail conditions, especially after rain, as some paths can become slippery or challenging.
The canyons are particularly beautiful after rainy days, when the waterfalls are lively and the streams are full, enhancing the lush, green environment. However, be aware that paths can become muddy and slippery in these conditions. Warmer months are ideal for swimming in places like Contrà Pria. Always check local weather conditions before your visit.
For those seeking a challenge, Val Grande, also known as 'Val Grossa', offers a stony path connecting the Lorenza cave to a fire road, recommended for experienced hikers. The Valle dell'Orco is described as wild and adverse, with deeply dug ravines and sections that can be exposed or require crossing streams. Similarly, the Sant'Andrea Valley of Grumolo can be adventurous, with sections interrupted by streams and fallen trees, though its main path has recently been cleared.
Yes, wild swimming is a popular activity in certain canyon areas. Contrà Pria in Arsiero is particularly renowned for its clear, cool river waters and deep pools, perfect for swimming and cooling off during warmer months. The Water Gorge (Val dell'Asino) also has spots where you can swim amidst its streams and waterfalls.
Yes, the Astico Valley offers beautiful paths along the river. Contrà Pria has a scenic path running parallel to the Astico River, allowing visitors to experience the unique geological formations. Additionally, the Sentiero del Canale dell'Astico is known for its atmospheric singletrack alongside the Astico stream, though it's advisable to check current accessibility due to past landslide closures.
Beyond hiking, the region around Thiene offers various outdoor activities. You can find numerous routes for running, gravel biking, and mountain biking. These guides provide options ranging from moderate to difficult, allowing you to explore the diverse landscapes of the Astico Valley and surrounding areas.
For adventurous routes, especially after rain, it's crucial to wear appropriate footwear with good grip, as paths can be muddy and slippery. Some sections may require crossing streams, so waterproof shoes or a willingness to get your feet wet are helpful. For areas like Valle dell'Orco or Sant'Andrea Valley, be prepared for potential obstacles like fallen trees and be resourceful in navigating the terrain. Always carry water and snacks.
While the canyons themselves are natural wonders, the broader region has historical significance. For instance, the Val dei Molini gets its name from the historical exploitation of the stream, with remains of old structures like stone masonry. The Sant'Andrea Valley of Grumolo is named after a small rustic church that once stood there, with a cross marking the site today. The Astico Valley has also inspired writers, such as Antonio Fogazzaro, who described its sublime gorge.
The towns and villages within the Astico Valley, such as Arsiero, offer various amenities. While Thiene itself has a range of options, smaller towns closer to the natural areas will provide more immediate access to cafes, restaurants, and accommodation suitable for visitors exploring the canyons. For broader regional information, you might find resources on the Pedemontana area helpful, such as visitpedemontana.com.
The Val dei Molini is highly regarded for its surprisingly unspoiled and wild environment. It features a mysterious and evocative forest where water dominates, forming lively waterfalls and deep ravines. Lush moss covers rocks and tree trunks, and various small valleys converge, creating enchanting clearings. The area also holds historical interest with remains of structures from when the stream was used for mills.
While many outdoor areas in the region are dog-friendly, specific rules regarding leashes or access might vary by location, especially in more sensitive natural areas or private lands. It's always best to keep dogs on a leash for their safety and to protect the local wildlife and environment. Check local signage or specific park regulations if available for the particular canyon you plan to visit.


Already discovered everything in this region? See additional gorges around Thiene for your next adventure: