Baiae Underwater Archaeological Park
Pozzuoli / Baiae · Italy
The submerged city of Baiae is the world's most accessible underwater archaeological site, with Roman imperial villas, mosaic pavements, marble statue bases, and the monumental nymphaeum of Emperor Claudius lying at depths of just 3 to 15 metres across a protected park that stretches for several kilometres along the Campi Flegrei shoreline. Divers finning between intact columns draped in gorgonians genuinely feel as though they have dropped through a trapdoor in time — the thermal subsidence that swallowed Baiae in the second century CE preserved building plans that are legible today down to individual room boundaries.
Conditions
Depth
3 to 15 m
Good for beginners
Current
Usually still
Can pick up on the edge
Visibility
15 to 25 m
Clearest in the calm season
Water
13 to 28°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 13 | 13 | 14 | 15 | 18 | 21 | 24 | 25 | 23 | 20 | 16 | 14 |
| Vis (m) | 10 | 10 | 12 | 12 | 15 | 15 | 15 | 12 | 15 | 15 | 12 | 10 |
| Current | Gentle | Gentle | Gentle | Still | Still | Still | Still | Still | Still | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Italian Wall Lizard
Last confirmed Jul 6, 2026 · 169 records
Almost always
Nearly every dive
Eurasian Blackbird
Last confirmed Jul 6, 2026 · 86 records
Almost always
Nearly every dive
Mallard
Last confirmed Jul 6, 2026 · 62 records
Almost always
Nearly every dive
Eurasian Coot
Last confirmed Jun 13, 2026 · 43 records
Almost always
Nearly every dive
Ornate Wrasse
Last confirmed Aug 14, 2025 · 7 records
Very likely
Most dives
Common Octopus
Last confirmed Jun 15, 2026 · 12 records
Very likely
Most dives
Mediterranean Rainbow Wrasse
Last confirmed Jun 2, 2026 · 14 records
Very likely
Most dives
Gear