Wonderful experience in Baia with the extremely friendly guides. Would recommend to anybody. We enjoyed the snorkeling tour with Andrea so much, a unique experience.





Have you ever seen a city underwater? Explore the wonders of the ancient Roman city of Baia, the Roman city where luxury was the standard, which today is partly submerged due to the strong volcanic activity of the Phlegraean Fields, the geological area where we find ourselves. The phenomenon called bradyseism has slowly brought the level of the earth down over the years, so today the Roman villas that stood in front of the sea are about four meters underwater and the sea has preserved them wonderfully. Come with us to see the ancient Roman city of Baia, you can experience the thrill of swimming on an ancient city today inhabited by so much marine life. All the remains, being no more than four meters deep, have perfect visibility from the surface and you can easily admire them while snorkeling!
Prices change with the date; the lowest is shown.
Out at sunset: the 3:00 PM departure is under way when the sun sets, around 4:58 PM in the coming weeks.
In demand: 215 of the next 300 departures are already sold out.
From the operator’s live schedule on Viator, checked Oct 20.
Reviews collected by Viator and Tripadvisor
Excurgo comparison of 2,925 Viator tours, recalculated daily.
For a full refund, cancel at least 24 hours before the scheduled departure time.
Snorkeling in the Bay Submerged Park lasts about 2h 30min.
Prices start at $40 per person for this Naples experience, booked through Viator with the price shown before checkout. There are 4 booking options, so the final price depends on the option you choose.
According to the operator’s current schedule, it runs every day, with 10 departures a day between 8:00 AM and 5:00 PM.
Children aged 7–15 pay from $40, adults from $40.
It can: 215 of the next 300 departures are already sold out, so booking ahead is a good idea.
Yes. Cancel at least 1 day before the start for a full refund. Later cancellations are non-refundable.
The meeting point is We are waiting for you at our Diving Center, a few steps from the Temple of Venus, at the entrance of the Bay Pier. You will surely find us easily, as you will see the PADI flags flying. Hotel pickup is not part of this experience.
The experience is available in EN, IT.
It is a small-group experience with a maximum of 8 participants.
Infants and small children can ride in a pram or stroller Infants are required to sit on an adult’s lap
Wheelchair accessible Transportation options are wheelchair accessible
Reviews collected by Viator and Tripadvisor
Wonderful experience in Baia with the extremely friendly guides. Would recommend to anybody. We enjoyed the snorkeling tour with Andrea so much, a unique experience.
It helps if you’ve snorkeled before but 5 of the 6 on this trip hadn’t. We took a small boat a few minutes into the bay and snorkeled with our guide who was very knowledgeable
Amazing experience with incredibly friendly guides in a beautiful and peaceful town, an excellent reprieve from the bustling of Naples. The snorkeling is a particularly fun and relaxed experience requiring no previous diving experience, as the underwater sights aren't very deep. If you can swim, you will have fun. Additionally, you can go visit the castle up the hill with a museum providing further historical context for the Roman baths and various other epochs that have inhabited this history-rich region. There's a bus directly from Naples center which drops you off right at the doorstep of the diving place and bay. This was pretty much the highlight of our trip to Naples (which is a pretty high standard to begin with). Highly recommended!
Unique experience snorkelling over a sunken villa in the harbour of Baia, seeing the ancient ruins and mosaics. Well organised with a very lovely snorkelling guide, Kaye who showed us where to look. The water was a bit murky and those who were able to dive down got a better look. Still was a very cool experience.
We enjoyed our tour, and particularly loved our guide. I cannot remember her name, but she was really fun, helpful, experienced, and knowledgeable. And I am always impressed when guides can communicate in multiple languages! I would definitely recommend this company. I will say I think there was a lot of activity in the water and a lot of wind so maybe August is not the best time to go, as the water was a bit rough - felt like being in a washing machine for an hour! Perfectly safe but a bit tiring and lots of water in the snorkel - I think I would not recommend this activity at all for someone who was not a strong swimmer. As for what we saw, we booked the lowest level experience and saw walls and floors and mosaics of one section of the old villa... if you want to see more, book a longer trip. For me, it was enough to get a feel for the place and I really enjoyed it.
The whole experience was great, really easy to book lots of helpful tips on how to get there very professional, i went with my teenage sons.The guide Kay was great, really helpful on fitting our equipment and helping us throughout the trip. Fantastic opertunity to view the sunken ruins. I even drop my phone and it fell to the sea bed she dived down very quickly.to get it amazing
The snorkel tour of the ruins was a great experience. The staff was excellent and engaged with us the entire time. We will definitely be doing more tours with Sea World Baia Diving
Thank you so much for your fantastic review! We’re thrilled to hear that you had such a great time exploring the underwater ruins with us. It’s wonderful to know that our team kept you engaged throughout the tour and helped make the experience so enjoyable. Sharing the history and beauty of Baia’s submerged ruins is something we absolutely love, and we’re happy you enjoyed discovering them with us! We can’t wait to welcome you back for your next adventure with us!
Very well organised, with lots to see, extended time when someone became ill and had to go back to the shore, showers and changing rooms basic
Thank you for sharing your experience with us! We’re glad to hear that you found the activity well organised and enjoyed everything there was to discover underwater. Safety and the wellbeing of our guests always come first, so when someone needs to return to shore unexpectedly, we make sure they receive the attention they need. At the same time, we know that unexpected situations can happen when spending time on a boat, which is why we extend the time in the water whenever possible, so that the rest of the group can still enjoy the experience they came for without being affected by the unforeseen situation! Thank you as well for your honest feedback about the changing rooms and showers. They are intentionally simple and practical: each changing room has a seat and a place to hang your belongings, while the showers are there to do exactly what you need after a dive — rinse off and get the salt off before heading home! We appreciate your feedback and we'll do our best to improve! We hope to welcome you back to Baia for another dive and another chance to explore the incredible submerged ruins!
Very cool experience with a lovely professional team. Prepare to dive to see the mosaics as they are not really visible from the surface.
An amazing experience that I could not recommend enough! Everyone was so kind and welcoming, so knowledgeable and comforting. I was a bit nervous but I felt very comfortable almost straight away and we had so much fun learning the facts, seeing the ruins and the fishes! It could not have gone better- we booked the 8am slot and got lucky it was just us two on the session :) it is a relaxed environment, everyone was chatty and they had also adopted kittens so that was an added bonus :). Thank you so much for the best experience
Thank you so much for this amazing review! We’re absolutely delighted to hear that you had such a wonderful experience with us. Knowing that you arrived feeling a little nervous but felt comfortable almost straight away means a lot to us. We always want everyone to feel safe, relaxed and able to enjoy the experience at their own pace! We’re so happy you enjoyed discovering the ancient ruins, learning about Baia’s history and spotting all the fish along the way. And of course… we’re glad our little four-legged team members added an extra touch to your visit! It sounds like the 8am slot worked out perfectly for you two, and we’re so happy everything went even better than expected. Thank you for choosing us and for recommending the experience so warmly. We hope to welcome you back to Baia for another underwater adventure soon!
| Tour | Duration | Rating | Price | |
|---|---|---|---|---|
Snorkeling in the Bay Submerged Park | 2h 30min | 4.9 (82) | $40 | |
Submerged Archaeological Park of Baia Diving and Snorkeling | 3 hours | 5.0 (8) | $114 | View |
Snorkeling among the Submerged Archaeological Finds of Baia da Napoli | 4 hours | 4.7 (82) | $120 | View |
Diving at the Baia Submerged Park for certified divers | 2h 30min | 5.0 (18) | $95 | View |
Double Dive Tour in Baia Submerged Park for Certified Divers | 4 hours | 5.0 (21) | $177 | View |
Double Dive in the Bay Park for certified divers | 4 hours | 5.0 (11) | $137 | View |
Boat Tour along the Coast of the Gods with Snorkeling | 3 hours | 4.8 (100) | $46 | View |