Pozzuoli / Baiae
Italy · Mediterranean
Naples Bay cradles one of the ancient world's most extraordinary dive sites — the submerged Roman city of Baiae, whose thermal-volcanic subsidience carried imperial villas, mosaic floors, and marble statues beneath 3 to 15 metres of clear Tyrrhenian water. Divers and even snorkellers glide above intact column capitals and Emperor Claudius's nymphaeum, while the surrounding volcanic seabed harbours surprisingly rich Mediterranean marine life.
How this reef is doing
ⓘ How we measure thisReef state
Live science signals for this reef are still being gathered.
Coral cover
Fish life
Heat
Fishing
Open to fishing, and the water is busy.
Sources · Global Fishing Watch and reef gravity
What you will see
17 species across the dive sites here
Eurasian Blackbird
Seen 22 days ago
at Baiae Underwater Archaeological Park
Least concern
Italian Wall Lizard
Seen 22 days ago
at Baiae Underwater Archaeological Park
Least concern
Mallard
Seen 22 days ago
at Baiae Underwater Archaeological Park
Least concern
Pond Slider
Seen 1 month ago
at Procida Island
Least concern
Common Octopus
Seen 1 month ago
at Baiae Underwater Archaeological Park
Least concern
Dusky Grouper
Seen 1 month ago
at Miseno Bay Reef
Eurasian Coot
Seen 1 month ago
at Baiae Underwater Archaeological Park
Least concern
Common Cuttlefish
Seen 1 month ago
at Procida Island
Least concern
Mediterranean Rainbow Wrasse
Seen 1 month ago
at Baiae Underwater Archaeological Park
Least concern
Cleaner Shrimp
Seen 2 months ago
at Secca delle Fumose
Moray Eel
Seen 2 months ago
at Miseno Bay Reef
Least concern
Chromis
Seen 3 months ago
at Secca delle Fumose
Least concern
Ornate Wrasse
Seen 11 months ago
at Baiae Underwater Archaeological Park
Least concern
European Conger
Seen Sep 2024
at Procida Island
Least concern
Spiny Starfish
Seen Sep 2024
at Procida Island
Red Gorgonian
Seen Aug 2024
at Miseno Bay Reef
Common Dentex
Seen year round
at Secca delle Fumose
Vulnerable
Dive sites
Baiae Underwater Archaeological Park
ornate wrasse · common octopus · mediterranean rainbow wrasse · italian wall lizard
Miseno Bay Reef
dusky grouper · red gorgonian · moray eel · italian wall lizard
Procida Island
common cuttlefish · spiny starfish · european conger · italian wall lizard
Secca delle Fumose
chromis · common dentex · cleaner shrimp · italian wall lizard