Marine Protected Area Gaiola Underwater Park
The Gaiola Underwater Park, a Marine Protected Area located in the beautiful Bay of Naples, is a one-of-a-kind destination that combines history, nature, and marine life. Established by the Interministerial Decree on August 7, 2002, the park covers 41.6 hectares and is home to a wealth of archaeological wonders and biodiversity.
Historical Significance
The coastal area, dating back to the 1st century BC, was once inhabited by opulent Roman villas. One of the most remarkable villas was the Villa of Pausilypon, constructed by the Roman official Publio Vedio Pollio. Following Pollio’s death, it became an Imperial villa. Today, visitors can see remnants of this grand estate, including tuff quarries, landings, nymphaeums, and fish ponds, both above and below the water’s surface, thanks to the phenomenon of bradyseism.
Click here to learn more about creating a personal itineraryNatural Beauty and Marine Life
The park is a unique blend of volcanic, biological, and historical-archaeological features. The tall cliffs made of Neapolitan Yellow Tuff, shaped by erosion and covered in Mediterranean vegetation, offer breathtaking views. The intricate seabed and favorable marine currents have created a rich ecosystem. Octopuses, bream, moray eels, and various other marine species thrive among the ancient ruins, bringing vibrant life and color to the underwater landscape.
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Must-See Attractions
- Villa of Pausilypon: Explore the remains of this grand Roman villa, including its tuff quarries, nymphaeums, and fish ponds.
- Underwater Ruins: Discover the submerged sections of the villa and other Roman structures, which are now home to a variety of marine life.
- Cliffs and Vegetation: Delight in the stunning views from the high cliffs covered in Mediterranean vegetation.
Highlights Not to Miss
- Aquavision: Experience the underwater park from a glass-bottomed boat, providing a unique perspective of the marine life and ruins.
- Snorkeling and Diving: Immerse yourself in the vibrant underwater ecosystem, teeming with marine life among the ancient ruins.
- Scenic Walks: Take a leisurely stroll along the cliffs for breathtaking views of the Bay of Naples and the Mediterranean vegetation.

Planning Your Visit
- Activities: The park offers guided tours, snorkeling, diving, and kayaking. It is recommended to book these activities in advance.
- Kayak Tours: One of the highlights for many visitors is the kayak tour along the Posillipo coast, which features underwater Roman columns and volcanic craters.
- Guided Tours: Join a guided tour of the Park of Pausilypon, starting from the Grotta di Seiano and exploring the remains of the luxurious villa.
Tips for Tourists
- Registration: Make sure to register on the official website, especially on Sundays at 18:00, to secure your visit.
- Permits: Print or take a screenshot of your permit barcodes in advance, as there is no mobile reception in the area.
- Footwear: The return walk can be challenging, so it is recommended to wear sports shoes.
- Timing: To avoid crowds, visit during off-peak times, as the park can get busy in July.
- Food: While bringing food is allowed, it is advised to avoid using plastic utensils.
How to Get There
- By Metro: Take Line 2 and get off at Mergellina. Continue by bus to Capo Posillipo, then walk along Via Tito Lucrezio Caro to Discesa Gaiola.
- By Bus: From Mergellina or Vomero, take the bus to Capo Posillipo and walk the rest of the way.
- By Car: Drive from central Naples towards the port, through the Vittoria tunnel, along the Lungomare, and then via Via Petrarca, Via Manzoni, and Via Tito Lucrezio Caro to Discesa Gaiola. The journey from Piazza Garibaldi takes approximately 34 minutes.
Opening Hours: 09:00 – 18:00
Ticket Prices: Entry is free, but registration is required. Fees apply for certain activities.
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