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2 hours 30 minutes
Mobile ticket
guided tour among open natural caves and tunnels, snorkeling among Roman remains from the 4th century BC, the Nymphaeum Room and Aenaria, volcanic Co2 gas emissions
The complete route, in particular the entrance to the caves, could be partially suspended due to adverse weather conditions, in which case we will take care of offering an alternative route of equal beauty.
Wheelchair accessible
Infants and small children can ride in a pram or stroller
Service animals allowed
Public transportation options are available nearby
Infants are required to sit on an adult’s lap
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
it is important to know how to swim
The return time and the total duration of the activity may be subject to delays due to preparation times and boat transfers
Confirmation of the time will be communicated during the confirmation phase and based on the number of participants
The minimum number for the tour is 4 people, if you do not reach the minimum number you will be contacted for a possible date change or refund
not recommended for those suffering from seasickness
SNORKELING IN ISCHIA A nature trail among caves and sites of interest historical and biological. In a simple way through a guided snorkeling tour, you can visit the beautiful Green Grotto, the Grotta del Mago, the archaeological area of the Ninfeo rock in Cartaromana and the submerged walls of the 4th century BC, the seabed in front of the Aragonese Castle, where you can observe the phenomenon of gaseous emissions in less than a meter of depth. All simply with a mask, mouthpiece, fins and a light mutine. The departure will take place at the premises of ANS Diving Ischia, in Ischia Ponte, the points will be reached by boat in a few minutes.
Use of Snorkelling equipment
Snacks
Soda/Pop
For a full refund, cancel at least 24 hours before the scheduled departure time.
50 reviews
Total reviews and rating from Viator & Tripadvisor
H9873JWaustinm,Jun 23, 2026
- Review from Tripadvisor
This was absolutely perfect. An amazing setting with really cool features and the guide couldn’t have been more helpful and patient. It was better than I was hoping it would be.
Victoria S,Jun 1, 2026
- Review from Viator
You were given wet suits, googles and snorkels. Were able to shower or rinse off after if needed. Could bring small bag of belongings onto the boat, the rest was left at the check in area in a bin
Chris D,Sep 30, 2025
- Review from Viator
Fabulous afternoon visiting four sites with a snorkel guide alongside us. Duration of the trip was just about right. Caves were amazing and the ruins too but my highlight was the CO2 bubbles - it was like swimming in a chandelier. Highly recommend. All equipment is supplied.
285katrienc,Sep 20, 2025
- Review from Tripadvisor
The snorkelingtour was a special experience for my brother and I! We had a very friendly guide, good materials, beautiful views, etc! 🧡💛♥️
Rosalie W,Sep 17, 2025
- Review from Tripadvisor
Great snorkeling, great Service that helps with booking. The divers were very competent and very adaptable.
Oneida D,Sep 15, 2025
- Review from Tripadvisor
Very friendly, knowledgeable people. Liked that it is a family business and they work to accommodate your needs. Saw very interesting caves and sites. Highly recommend!
emiliocF9857GQ,Sep 6, 2025
- Review from Tripadvisor
A unique experience that takes you to explore the caves of Ischia and its seabed. I recommend it to all lovers of the sea 🌴 greetings from Emilio





ralphsI3845UB,Sep 2, 2025
- Review from Tripadvisor
The two guides were Very helpful, the suits fit perfectly. The caves were wonderful. I’d recommend Ans to anyone who comes to ischia
W2176GQ,Aug 14, 2025
- Review from Tripadvisor
Great in almost every way. Punctuality, good equipment, and unique experience to do absolutely if you travel to Ischia: two sublime natural caves, another dug by the Romans, and finally the underwater vents at the foot of the Aragonese castle. Only small point to improve: plan an initiation to wear masks and snorkels for novices, because our 10-year-old son had a lot of difficulty to follow, it was a first for him. Very friendly team that gives a lot of exciting information about the places visited and the ecological issues.
Annamaria P,Aug 12, 2025
- Review from Tripadvisor
Evocative experience lived with my family. The owners were very careful to make us live everything to the full although we were inexperienced. Special thanks to Michele and Matias
Operated by Ans Diving Ischia