Green Cave Alghero Reopening 2025:

The Green Cave (Grotta Verde) of Alghero reopens in 2025. After years of work, the site is ready to welcome visitors and scholars. The intervention required time and resources, but now the cave returns as a protagonist among Sardinia's natural and archaeological treasures.

After twenty years of closure, this jewel set in the promontory of Capo Caccia finally becomes accessible again, offering visitors an immersive experience of unequaled history, geology, and biodiversity.

Where it is and why it is important

The Green Cave is located on the Capo Caccia promontory, inside the Porto Conte Park. The entrance is about 80 meters above sea level. It is the second most important cave in the area after Neptune's Cave. Alghero is famous for its caves, and the Green Cave adds value to the local speleological heritage. "The completion of the works represents an important step forward that closes a circle started several years ago," says Raniero Selva, Alghero's Councilor for the Environment.

History and Archaeological Value

The Green Cave has been frequented by humans since the Neolithic period. The graffiti and artifacts found testify to a human presence of at least 7,000 years. In medieval times, sailors built an altar dedicated to Saint Erasmus. The cave has been used as a place of worship and a burial site.

An archaeology expert, cited by the Alghero Foundation, emphasizes: "The prehistoric evidence of the Green Cave is unique in Sardinia and represents a reference point for scientific research."

A Site of Archaeological Significance

The Green Cave is also famous for its archaeological finds: graffiti and remains dating back to the Neolithic period testify to human presence thousands of years ago, making the visit a real dive into the island's past.

Underground Biodiversity

Beyond its historical and geological value, the cave hosts specialized fauna: troglobite species, small crustaceans, insects adapted to darkness, and bat colonies. A small brackish water lake inside creates a unique microhabitat, making the Green Cave a natural laboratory of biodiversity.

Geology and Landscape

The cave develops among imposing stalactites and stalagmites, some up to 20 meters high. The walls are covered with moss and lichens that create green reflections. Hence the name “Grotta Verde” (Green Cave). The bottom hosts a small brackish lake that reflects natural light. The environment is evocative and fragile.

The surrounding landscape, between cliffs and Mediterranean scrub, makes the site even more fascinating. The cave is part of a karst system that also includes Neptune's Cave and Nereo's Cave.

Restoration Works and Reopening

The works began in 2008 and suffered several interruptions. Access paths have been consolidated, and new lighting and a safe staircase have been built. Since 2024, the Porto Conte Park has managed the final phase. The reopening is scheduled for spring 2025, with guided tours and a mandatory reservation system.

The site will be accessible to limited groups to protect the internal environment. Tourism operators of the Integrated Hospitality System (SIO) have already participated in a preview visit, a sign of the cave's centrality in Alghero's new tourism offer.

Conservation and Protection

The Green Cave is subject to continuous monitoring. The Porto Conte Park has adopted measures for the conservation and enhancement of the site. Scientific studies on internal environmental parameters are underway to ensure the sustainability of visits. The cave is included in the Natura 2000 sites, with strict constraints for the protection of biodiversity and archaeological finds.

How to Visit the Green Cave

Visits will be possible only by reservation. The route includes an access staircase and specialized guides. The number of visitors is limited per session. Departure is from the Casa Gioiosa reception center, headquarters of the Porto Conte Park.

How to Get There

From Alghero, take State Road 127bis and Provincial Road 55 to Capo Caccia. The site is signposted and has parking near the entrance.

What to See Nearby

• Neptune's Cave (Grotta di Nettuno)
• Egea Museum of Fertilia
• San Giacomo Tower (Casa del Rubrum)
• Porto Conte Park Trails

Prices and Tickets

Access is exclusively via guided tours to ensure the safety and protection of the site.
Official prices will be communicated close to the opening, but a rate in line with the main attractions of the area is expected (for example, the nearby Neptune's Cave has a full ticket price of €14, reduced €10, and discounts for families and school groups).
It is possible to purchase the Alghero Ticket, a single ticket that allows you to visit multiple city attractions, including the Green Cave, with significant savings and additional benefits such as guides and thematic albums.

Land Access Methods

Access via land is through the new panoramic staircase that starts from the Capo Caccia promontory.
Entry is allowed only in the presence of authorized guides, complying with conservation and safety regulations.
The route is suitable for anyone with normal physical condition; however, comfortable clothing and non-slip shoes are recommended.

Impact on Local Tourism

The reopening of the Green Cave strengthens Alghero's tourism offer. The site attracts scholars, speleologists, and nature lovers. The economic benefits generated also favor accommodation facilities and local services. A welcoming B&B offers authentic local experiences to visitors who choose to explore the park.

FAQ – Frequently Asked Questions about the Green Cave of Alghero

1. When does the Green Cave reopen?

The reopening is scheduled for spring 2025, with guided tours and mandatory reservations.

2. How do I book a visit?

Reservations can be made through the Porto Conte Park website or at the Casa Gioiosa reception center.

3. How many visitors are allowed at a time?

Access is limited to small groups to protect the internal environment.

4. What are the main features of the cave?

Stalactites, green stalagmites, Neolithic graffiti, a brackish lake, and a medieval altar.

5. Is it suitable for everyone?

The visit requires a short walk and descending a staircase, but it does not present particular difficulties for those in good physical condition.

6. Why is the Green Cave important?

For its archaeological, naturalistic, and touristic value. It is one of the most relevant sites in the Mediterranean.