Snorkeling among the Underwater Caves of Ischia Ponte and Roman Walls
Open grottoes, sunken walls and gas rising from shallow seabed
You swim among open natural caves and tunnels, past Roman remains from the 4th century BC and into the Green Grotto. This guided snorkeling tour off Ischia Ponte, on the island of Ischia, takes you through the Grotta del Mago and the Nymphaeum rock at Cartaromana, with the mask, fins and light wetsuit provided.
What’s included
Snorkeling equipment to use
Next departure: 21 Feb 2027
Information
You swim through open grottoes and past 4th-century BC Roman walls off Ischia Ponte, with snorkel gear included and a guide beside you.
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Traveler reviews
The experience
A few minutes by boat from Ischia Ponte, and then the sea becomes the whole place. You put on a mask, a mouthpiece and fins, pull on a light wetsuit, and follow your guide into open natural caves and tunnels. First comes the Green Grotto, then the Grotta del Mago, and each one feels a little more like a secret the island has kept.
Then the story of the place comes up from the bottom. At the Ninfeo rock in Cartaromana you swim over the archaeological area, and the submerged walls from the 4th century BC lie on the seabed below, Roman remains you can make out from the surface. Closer to the Aragonese Castle the water is less than a meter deep, and there you can watch the volcanic gas emissions rise from the seabed.
Expect the route to shift with the weather, because the cave entrances can be partly suspended on rough days. In that case an alternative route of equal beauty is offered in their place. Come comfortable in the water, since knowing how to swim is a requirement for the whole outing.
Top questions
What languages is the tour guided in?
Live guide in English and Italian.
Can children come?
Yes. Ticket types: Child (under 1).
What happens if it rains?
It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24 h before the start.
Do I need to know how to swim for this?
Yes, swimming ability is required. You snorkel through the caves and past the submerged walls, so you should be comfortable in open water.
Is the Green Grotto part of the snorkeling route?
Yes. The guided route passes through the Green Grotto and then the Grotta del Mago on the same swim.
Can I see the Roman ruins while snorkeling?
Yes. The submerged walls from the 4th century BC lie on the seabed, and the Ninfeo rock at Cartaromana is part of the swim.
What happens if bad weather affects the route?
The cave entrances can be partly suspended in bad weather, and an alternative route of equal beauty is offered instead.
Operated by Ans Diving Ischia. Explorevia does not run this tour: we compare it with similar options, and you book it with our booking partner.
Prices and times updated 6 days ago
Snorkeling Among Ischia Ponte Caves and Roman Ruins
2h 30m · EN · IT
from € 50 per person
≈ US$ 56 in your currency
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