Caves in Sud Sardegna offer a diverse range of underground experiences, characterized by unique geological formations and historical significance. The region features caves carved into ancient dolomitic rocks and Cambrian limestone, some dating back over 500 million years. These natural formations include hydrological tunnels and vast karst systems, providing insights into the area's geological past and natural processes. Sud Sardegna's caves are notable for their variety of speleothems and archaeological findings.
Last updated: May 15, 2026
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Entry is only allowed with a guide, every 15-30 min. The last tour before the lunch break is at 12:15, afterwards at 15:00.
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The Su Mannau Caves, near Fluminimaggiore, are a unique feature of their extensive cave system, among the oldest in the world. With its two branches, they are also of great archaeological and speleological interest. The right-hand section consists of an extensive karst complex of Cambrian origin and extends over several levels. Some are higher and already fossilized, others deeper and still active. The right-hand branch was formed by the Rapido River and consists of numerous and varied passages and halls, which are the most interesting sight in the cave. The first hall is of great historical importance, not least because of its connections to the nearby Punic-Roman temple of Antas. A must-see!
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The evocative Grotta di San Giovanni is a geological and archaeological treasure, as well as the longest vehicle-accessible cave in the world. The cave is accessible from two sides, but the ticket office and information point are located at the main, southern entrance. Entrance is permitted only during cave opening hours. Ticket prices vary depending on the type of visit. You can find all the latest information on the website: https://www.grottasangiovanni.com/.
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The cave is accessible from both sides, but the official entrance, where the ticket office and information point are also located, is the south one, on the opposite side. It is also possible to enter from this side by ringing the intercom and waiting for an operator to come and open the door for you. Entrance to the cave is subject to a fee and is only possible during opening hours. More information is available on the website: https://www.grottasangiovanni.com/
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The Su Mannau Cave is one of the most spectacular karst caves in Sardinia. It extends for approximately 8 kilometers, although the accessible section is limited to a 500-meter path through walkways, rooms, ponds, and underground waterfalls. The first part of the visit leads to the archaeological hall, an ancient underground temple used as a water cult in the pre-Nuragic era, connected to the nearby Temple of Antas. Continuing, you enter a living environment, where stalactites, stalagmites, and alabaster flows are reflected in the clear water, home to the Stenasellus nuragicus, a tiny crustacean unique in the world. The cave is open for guided tours year-round: information and hours at https://www.sumannau.it/
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At this cave exit you can clearly see the original riverbed
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A visit including a guided tour is worthwhile. It takes about 1 hour.
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Several caves in Sud Sardegna are family-friendly. Caves of Is Zuddas and Su Mannau Cave are both tagged as family-friendly. San Giovanni Cave is also highly accessible, being traversable by road, making it an easy option for all ages.
Yes, San Giovanni Cave in Domusnovas is notable for its accessibility. It is one of the few caves in the world that can be traversed by road, and the only one in Italy, making it uniquely accessible for pedestrians and those using wheelchairs.
Sud Sardegna's caves are renowned for their diverse speleothems. The Caves of Is Zuddas are particularly famous for their rare and spectacular aragonite formations, including delicate 'helictite aragonites' or 'cave flowers'. Su Mannau Cave features impressive stalactites, stalagmites, columns, and cave pearls.
Caves generally maintain a constant internal temperature year-round, making them a good destination in any season. For example, the Caves of Is Zuddas maintain a constant 16°C. Su Mannau Cave offers guided tours year-round. Visiting during the warmer months can offer a cool escape from the heat, while off-season visits might mean fewer crowds.
Many caves in Sud Sardegna have significant historical and archaeological value. Su Mannau Cave includes an Archaeological Hall that served as an ancient underground temple dedicated to the Mother Goddess, with findings from Nuragic, Punic, and Late Roman eras. The San Giovanni Cave also has a rich history, with its road built in 1866 for mining transport.
The duration of a visit varies by cave. For instance, the tourist route in Caves of Is Zuddas is about 500 meters long, and the accessible section of Su Mannau Cave is also approximately 500 meters. San Giovanni Cave's traversable road is about 850 meters. Guided tours typically last between 45 minutes to 1.5 hours, depending on the cave and the tour type.
Caves maintain a cool, consistent temperature and high humidity, regardless of outside weather. It's advisable to wear comfortable walking shoes with good grip, and bring a light jacket or sweater, even in summer. Some caves may have damp or uneven surfaces.
Yes, the region offers various outdoor activities. For example, the area around San Giovanni Cave features the San Giovanni Cave Trail, which is a beautiful wooded stretch. You can also find numerous mountain biking trails, such as the 'Ring of Domusnovas – discovering the mines and the cave of San Giovanni', which explores the local mining history and natural features. For more options, explore MTB Trails in Sud Sardegna or Road Cycling Routes in Sud Sardegna.
The Cave of Kisses is a sea-level cave located within the municipal territory of Sant'Anna Arresi. It is known for an overhanging platform, about 12 meters high, which is sometimes used by divers in the summer. While you can't always see deep into the grotto, it offers a scenic viewpoint.
Yes, Sud Sardegna is home to several ancient burial sites that utilize natural or carved caves. The Montessu Necropolis near Villaperuccio is a complex of about 40 tombs dating back almost 5000 years, with chambers carved into the rock. Other examples include the Domus de Janas Tombs 1–5 and Tombs 29–35, which are also ancient cave-like burial structures.
Grotta Is Janas is recognized as a natural monument and historical site. While specific details about its features are less publicized than other major caves, its designation suggests it offers significant natural beauty or historical interest, often involving unique rock formations or ancient uses.
For popular tourist caves like Su Mannau Cave and Caves of Is Zuddas, it is often recommended to check their official websites or contact them directly for current opening hours, ticket prices, and booking requirements, especially during peak season. Some caves, like San Giovanni Cave, may require booking for access, even if the passage itself is free.


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