Caves around Riolo Terme are located within the Vena del Gesso Romagnola Regional Park, a landscape defined by its unique gypsum geology. This area features natural karst phenomena and significant historical sites. The subterranean systems offer insights into geological formations and ancient human presence.
Last updated: May 20, 2026
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Located north of the gypsum quarry in Monte Tondo, which was exploited in the 1960s by Anic for the production of fertilizers; fortunately, in 1993 the quarry was sold to Saint Cobain and the environmental situation has improved, although the scar towards the top of the mountain remains.
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fantastic to say the least, I recommend you try it!!!!
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the cute cat EremoMonte Mauro
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Area with numerous singletracks and well-rideable trails
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at Ca' Castellina ══════════════════ 136th excursion and 6th time in the Vena del Gesso Park | the Sentiero dei Cristalli starting from Riolo Terme and lunch at the Agriturismo Pietra di Luna | Riolo Terme ═════════════════ 👇 here is the video in 4K 👇 https://youtu.be/gD3mxpMKBSM?si=gApbkb3HcYDfJaRs
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Suggestive point of reflection, the view is also beautiful
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Not particularly interesting as access is unfortunately prevented by a grate. There is an information panel near the gate. There is no view of the landscape due to trees.
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The two most prominent caves in the area are the Grotta del Re Tiberio, located directly in Riolo Terme, and the Grotta della Tanaccia, situated near Brisighella. Both offer distinct experiences within the Vena del Gesso Romagnola Regional Park.
Yes, they do. The Grotta del Re Tiberio provides both 'historical' (tourist-friendly) and more challenging 'speleological' guided tours. In contrast, the Grotta della Tanaccia offers a more authentic speleological adventure with narrow passages, ideal for those seeking a hands-on experience.
Both the Grotta del Re Tiberio and Grotta della Tanaccia are rich in history. Grotta del Re Tiberio has archaeological evidence from the Copper Age to the Roman Imperial Age, used for cults, burials, and settlements. Grotta della Tanaccia also features extensive archaeological discoveries from the Copper Age, Iron Age, and Neolithic periods, offering insights into prehistoric settlements.
The caves in the Vena del Gesso Romagnola are known for their unique gypsum geology. In Grotta del Re Tiberio, you'll find gypsum walls, crystals, and calcite formations. Grotta della Tanaccia also features stalactites, stalagmites, and interesting erosion phenomena.
The Grotta del Re Tiberio offers tourist-friendly routes that are accessible for a wider range of visitors, including families. For those seeking a more adventurous and challenging experience, the speleological tours at both Grotta del Re Tiberio and Grotta della Tanaccia are guided by experts and provide necessary equipment, making them suitable for beginners interested in authentic caving.
Visits to both Grotta del Re Tiberio and Grotta della Tanaccia are only allowed by reservation and are accompanied by speleologists or guides. It is essential to book your tour in advance to ensure availability and an informative experience. For Grotta del Re Tiberio, you can find more information on booking via Visit Romagna.
For speleological tours, guides typically provide specialized equipment such as speleological suits, helmets, and gloves. For more general tourist routes, comfortable clothing and sturdy shoes are recommended. It's also a good idea to bring a sweatshirt, as temperatures inside caves are consistently cool.
The Vena del Gesso Romagnola Regional Park, where these caves are located, offers numerous outdoor opportunities. You can explore cycling routes like the "Ciclovia dei Gessi Loop" or "Riolo Terme Fortress – Monte Mauro Summit loop." For more ideas, check out the cycling guide for Riolo Terme or the traffic-free bike rides guide.
Beyond the main caves, you can also find sites like the Quarry of Lapis Specularis at Ca' Castellina, an ancient quarry where gypsum and lapis were extracted. There's also the Grotta della Toresina, another ancient cave created by miners, though access may be restricted.
The Grotta della Tanaccia can be visited all year round, with the exception of the winter period to protect hibernating bats. Guided tours for Tanaccia can be organized by reservation, every day from April. For Grotta del Re Tiberio, it's best to check their official schedule, but generally, the warmer months offer more frequent tour options.
While the Vena del Gesso Romagnola Regional Park offers dog-friendly trails, dogs are generally not permitted inside the caves themselves due to safety and environmental concerns, especially regarding bat habitats. It's always best to confirm specific policies with the tour operators for each cave.


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