Parco Sommerso di Baia
Bacoli
KnownIn the water & diving

The story
A Roman city swallowed by the sea through bradyseism: mosaics, columns and statues visited from a glass-bottomed boat or with a mask.
Access
€ tour
The story
The Underwater Park of Baia protects a Roman city that ended up under water: ancient Baiae, the most luxurious holiday resort of the empire, sunk over the centuries beneath the sea because of the bradyseism of the Campi Flegrei. Established in 2002, it is a case unique in the Mediterranean of an archaeological and natural area protected under water.
What to see
On the seabed, a few metres deep, you cross — swimming or diving — streets, villas, statues and mosaics of 'submerged Pompeii': among the treasures, the nymphaeum of Punta Epitaffio with its statues (the originals are at the Castle of Baia). It is visited with snorkelling, diving or glass-bottomed boats.
Tips
It is explored by diving, with guided snorkelling or with glass-bottomed boats: choose the option according to how much you want to get wet. Book with the authorised centres and keep an eye on the sea conditions. It is a marine protected area: respect the rules of access.
Frequently asked questions
What is the Underwater Park of Baia?
A marine protected area that guards the underwater remains of ancient Baiae, 'submerged Pompeii', sunk because of the bradyseism of the Campi Flegrei.
How do you visit the Underwater Park of Baia?
With guided snorkelling, scuba diving or glass-bottomed boats, through the authorised centres.
What can you see on the seabed?
Roman streets, villas, statues and mosaics, including the nymphaeum of Punta Epitaffio.
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