Top 9 Caves around Borso Del Grappa
Caves around Borso del Grappa are found in a region characterized by the Monte Grappa massif and the Brenta River valley, known for its karst topography. This area offers a blend of natural geological formations and historical sites, particularly those related to World War I. The landscape features various cave types, from natural grottoes shaped by water to man-made tunnels with historical significance.
Best caves around Borso Del Grappa
- The most popular caves is War Caves, a historical site and cave that offers exploration of tunnels and emplacements. The area overflows with history from World War I.
- Another must-see spot is Campolongo Trenches (WW1), a historical site featuring long and deep Italian trenches. It includes walkways, outposts, tunnels, and shelters within a dense forest.
- Visitors also love Oliero Caves, a complex of caverns where much of the water from the Sette Comuni plateau flows. It is a classic example of karst phenomena and can be visited with a guide, often including a boat trip.
- Borso Del Grappa is known for natural karst caves, historical war tunnels, and river-fed grottoes. The region offers a variety of cave experiences, from geological formations to sites with significant historical context.
- The caves around Borso Del Grappa are appreciated by the komoot community, with more than 20 upvotes and over 30 photos shared by users.
Last updated: May 2, 2026
Campolongo Trenches (WW1)
Highlight (Segment) • Historical Site
Cleaned and recovered, it features walkways, outposts, tunnels and shelters in a dense and silent forest: today the vegetation largely covers the view, especially in summer, but at the time the view of the valley was clean.
You can follow the winding of the trench from inside or from above, along a path complete with little bridges... or a little and a little!
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Oliero Caves
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Oliero River, near the Oliero Caves
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War Caves
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Grotta di Oliero di Sotto
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Tips from the Community
A simply wonderful place, easy to reach from the Carpanè-Valstagna station, following a well-marked path along the Brenta River. The staff was equally fantastic, allowing us to follow the cave tour in both Italian and English (part of my group didn't speak Italian). I recommend going in spring; it's cooler and there's usually less traffic, so you can enjoy it all better. ;)
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The Trenchers of Monte Campolongo - not to be confused with the mountain of the same name and its fort exactly on the opposite western side of the Asiago Plateau - are a long and deep Italian trench from the First World War, dug on a promontory which dominates the final stretch of the Val Brenta. It had no active role during the Great War, but served as an extreme bulwark to prevent a possible invasion of the Austro-Hungarian army from Valsugana. Cleaned and recovered, it features walkways, outposts, tunnels and shelters in a dense and silent forest: today the vegetation largely covers the view, especially in summer, but at the time the view of the valley was clean. You can follow the winding of the trench from inside or from above, along a path complete with little bridges... or a little and a little!
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The Oliero caves are a complex of caverns located on the slopes of the Sette Comuni plateau, near the hamlet of Oliero (municipality of Valbrenta). Much of the water that penetrates through the plateau above flows from the caves, a classic example of karst phenomena. There are four caves currently open to the public: Covol dei Veci and Covol dei Siori from which the Oliero river flows; while the two upper ones, Covol dei Assassini and Covol dee Soree, are now dry. To visit the caves it is necessary to have a ticket and entry is allowed only with a guide. In the park of the caves it is also possible to visit the museum of speleology and karst phenomena and relax at the bike grill bar.
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If the summer is hot here you will find great refreshment! Very beautiful and to be visited with a small boat.
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It takes a boat into a water cave
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Impressive as the sound rumbles in the caves, I can hardly believe that the few surviving boys came home completely unnerved, try it. Beware of the few bats, if you see them try not to disturb them
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L'oliero is a show and if you've never been to the caves you don't know what you're missing. Go there
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The caves of Oliero are beautiful. In MTB near the entrance there is a stand, a pump and a screwdriver for small maintenance. Drinking fountain with fresh water to fill the bottles.
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Frequently Asked Questions
What types of caves can I explore around Borso del Grappa?
The region offers a diverse range of cave experiences, including natural karst formations, historical war tunnels, and unique sites like enlarged natural hollows and old mines. You can find river-fed grottoes, geological marvels, and tunnels with significant historical context from World War I.
Are there any historical caves related to World War I in the area?
Yes, the area is rich in World War I history. You can explore the War Caves, which are a series of tunnels and emplacements dug by Italian soldiers. Another significant historical site is Campolongo Trenches (WW1), featuring long and deep Italian trenches with walkways, outposts, tunnels, and shelters.
Which caves are considered natural karst formations?
The Oliero Caves are a classic example of karst phenomena, where much of the water from the Sette Comuni plateau flows. The Bus de Refos Cave is another gigantic natural karst gorge through which the Lastego stream flows, particularly impressive during rainy periods.
Are there any family-friendly caves or easily accessible options?
Yes, the Bus de Refos Cave is accessible for children, reachable within about 20 minutes from a parking lot, though the final 100 meters require walking. The Santa Barbara Cave is also easily accessible with adjacent parking and a stone staircase leading to its entrance. The Oliero Caves are also considered family-friendly, offering guided tours and boat trips.
Can I visit any caves with a guide or take a boat trip?
Yes, the Oliero Caves can be visited with a guide, and tours often include a boat trip into the caverns, especially at Grotta di Oliero di Sotto. This allows you to experience the unique underground rivers.
What is the best time of year to visit the caves around Borso del Grappa?
Visiting in spring is often recommended for the Oliero Caves, as it's cooler and generally less crowded. For caves like Bus de Refos, rainy periods can enhance the experience as the stream flows more actively. Generally, spring and summer offer pleasant conditions for exploring the surrounding areas and accessing the caves.
Are there any unique or less common cave experiences in the region?
Beyond natural formations, you can explore the Old Lignite Mine of Mostaccin, which features artificial drains, a waterfall, and a cave, offering a glimpse into historical mining activities. The Santa Barbara Cave is an enlarged natural hollow with over 400 mines, built by local inhabitants and featuring an altar inside.
What do visitors enjoy most about the caves around Borso del Grappa?
Visitors appreciate the blend of natural beauty and historical significance. The impressive acoustics and historical context of the War Caves are often highlighted. The Oliero Caves are praised for their natural grandeur and the unique boat trip experience. The overall appeal lies in connecting with both geological wonders and World War I history.
What outdoor activities can I do near the caves?
The Borso del Grappa area is excellent for various outdoor activities. You can find numerous cycling routes, including challenging road cycling ascents to Monte Grappa and mountain biking trails. For more details, explore the Cycling around Borso Del Grappa, MTB Trails around Borso Del Grappa, and Road Cycling Routes around Borso Del Grappa guides.
Are there hiking trails near the caves, and what is their difficulty?
Yes, many paths lead into the mountains from sites like Santa Barbara Cave, offering further exploration. Reaching the War Caves often involves rather challenging climbs, but the historical context makes the effort worthwhile. You can find various hiking and walking paths throughout the Monte Grappa massif, with difficulties ranging from easy walks to demanding ascents.
Are there parking facilities available near the caves?
Yes, some caves offer convenient parking. The Santa Barbara Cave has adjacent parking available. For the Bus de Refos Cave, there is a parking lot approximately 20 minutes' walk from the cave entrance. For other locations, it's advisable to check specific access points.
What kind of gear might I need for exploring caves in this region?
For general cave visits, comfortable walking shoes are recommended. If you plan to explore historical war tunnels or more challenging natural caves, a headlamp or flashlight is essential. For the more demanding climbs to sites like the War Caves, appropriate hiking gear and sturdy footwear are advised.
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