REVIEW · SICILY
Catania: Gulf Scuba Diving Tour with Marine Biologist
The sea floor tells Sicily’s story. This Gulf of Catania scuba tour carries you from Aci Trezza toward the Cyclopean Isles, where old lava flows become basalt columns, underwater canyons, and shelter for octopus, bream, sponges, and gorgonians. I like the close support for beginners, and I like having a marine biologist explain what you are seeing instead of simply pointing at fish.
The main consideration is time. The experience lasts about 3.5 hours, yet some of that goes to preparation, boat travel, and returning equipment. If you want a long technical session, this is not the right trip. If you want a calm first taste of Sicily below the surface, the small-group attention and safety-first approach make the price of $82 reasonable.
Key points at a glance

- Lava beneath the water: Swim past basalt columns, lava ropes, pillow formations, white sand, underwater canyons, and volcanic faults.
- Marine biology with your swim: Guides explain local species and the volcanic coast as you move through the water.
- Strong choice for first-timers: Andrea and his team take beginners through the equipment and underwater signals step by step.
- Cyclopean Isles setting: The boat reaches the marine protected area around Aci Trezza, with time for coastal views and marine life.
- Equipment included: Diving gear and a professional guide are part of the $82 price.
- Flexible booking: You can cancel up to 24 hours ahead for a full refund and reserve without paying immediately.
Starting at Etna & Sea Excursions in Catania

Your outing begins at Etna & Sea Excursions, the base for the boat trip and equipment setup. The precise meeting arrangements should be checked when you book, since hotel pickup and drop-off are not included. Plan to reach the starting point with enough time to meet the guide, sort out your gear, and ask questions before leaving shore.
The team speaks English, French, Italian, Portuguese, Spanish, and German. Audio support is also available in French, Spanish, Portuguese, and German. That language range matters during a scuba lesson, where a clear explanation of breathing, equalizing, hand signals, and safety steps is far more useful than a hurried briefing.
Andrea is the guide most often associated with this experience, and several other instructors, including Jerry and Rosario, have also led sessions. Their style is patient and hands-on. First-time participants are shown how the equipment works on the boat and then given another explanation in the water before moving farther out.
That second check is important. You do not have to pretend you feel relaxed. If you are nervous, say so. The instructors are used to helping people who have never breathed through a regulator, and the strongest part of this trip is the steady reassurance rather than any pressure to descend quickly.
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The boat ride to the Cyclopean Isles

The trip heads toward the Cyclopean Isles near Aci Trezza, one of the best-known coastal settings close to Catania. The ride is part transport and part sightseeing, with views along the Sicilian coast and, on some routes, a chance to see Mount Etna from the water.
Do not expect a long sightseeing cruise with a full coastal commentary. The boat ride serves the underwater outing first. Still, it gives you time to settle in, look at the volcanic shoreline, and hear about the islands and local marine life from the crew.
Some sessions include an aperitif, snacks, or drinks after the water activity. These extras have been appreciated, but they should not be treated as the central promise of the trip. The value is in the guided sea experience and the included equipment.
The crew may adjust the location if conditions make one area less suitable. That flexibility is a real safety benefit. On one occasion, jellyfish made an afternoon session unwise, so the guides offered a different time and location rather than pushing ahead. Sea conditions and wildlife cannot be controlled, and a responsible operator should be willing to change plans.
Learning the equipment before entering the water

Before you descend, the instructor explains the mask, fins, tank, regulator, buoyancy equipment, and basic underwater communication. You learn how to breathe slowly, clear your ears, and signal if something feels wrong.
The pace is especially helpful for beginners. Some participants arrive nervous or unsure of their swimming ability, and the team stays close while they become comfortable. One guide may remain beside a less confident participant throughout the session, while another watches the wider group.
The equipment is included, which keeps the $82 price simple. You do not need to arrange a separate rental package. The instructors use the preparation time to check fit and comfort, so speak up if a mask leaks or a piece of equipment feels awkward.
You should not read suitable for beginners as meaning effortless. Breathing underwater takes a few minutes to feel natural, and equalizing your ears can require patience. The guides can support you, but you still need to follow instructions and be honest about how you feel.
People with heart problems or high blood pressure should not book this activity. It is also not suitable during pregnancy. If you have another medical concern, the supplied information does not give a specific answer, so ask the operator or a medical professional before reserving.
Descending over an ancient lava seabed

The underwater setting is the reason to choose this outing over a standard coastal boat trip. Catania’s volcanic past continues below the waterline. Instead of a flat sandy bottom, you may pass formations created by old lava flows, including basalt columns, rounded pillow lava, and rope-like textures.
White sand appears between the darker rocks, giving the sea floor a sharp contrast. The guides lead you through underwater canyons and volcanic faults, showing how the seabed creates hiding places and feeding areas for marine life.
You might see schools of bream, an octopus tucked between rocks, sponges, gorgonians, starfish, crabs, and other small creatures. The exact sightings change with visibility, season, and location. That is part of the charm, but it also means you should not book expecting a fixed list of animals.
The marine biologist adds useful context. Instead of only searching for large creatures, you learn to notice fish nurseries, sponges, and smaller animals that blend into the rock. A guide may point out something you would swim past on your own.
The water is described as clear in the strongest conditions, with colorful fish and marine growth visible around the rock formations. At other times, visibility can be less perfect. The experience is about observing a living volcanic seabed, not visiting an underwater aquarium.
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A calm session for first-time scuba participants

The best fit is a first-time participant who wants a carefully supervised introduction. The instructors repeat directions, check on you underwater, and keep the pace manageable. Beginners have been able to reach around 8 meters with close guidance, although the exact depth and route depend on the conditions and the instructor’s judgment.
If you are anxious, the first few minutes may feel more like a lesson than an adventure. That is a good thing. Once your breathing settles, the equipment begins to feel less strange and you can pay attention to the fish and rock formations.
You do not need an advanced certification for the introductory experience described here. Experienced divers can also enjoy the area, especially if they appreciate the local geology and marine life rather than needing a demanding technical route. Tell the instructor about your previous experience so the session can be adjusted.
The operation has also accommodated mixed groups. A stronger diver may spend time exploring farther out while a beginner remains with an instructor. Do not assume everyone will receive the same route or depth. The guide’s priority is to keep the group comfortable and safe.
Snorkeling may be available for someone in your party who does not want to use scuba equipment. Some people have joined the boat while another person completed the underwater session. Confirm the exact arrangement before booking, since the central activity is the scuba experience.
What the 3.5 hours feel like

The advertised duration is about 3.5 hours, while the full boat schedule can sometimes run closer to four hours. Use the longer figure as a sensible planning cushion, particularly if you have a train, airport transfer, or restaurant reservation afterward.
A typical flow looks like this:
- Meet at Etna & Sea Excursions and get fitted with equipment.
- Travel by boat toward the Cyclopean Isles and the selected sea site.
- Review breathing, safety, and underwater signals.
- Enter the water with close instructor support.
- Follow the guide over volcanic rock, sand, canyons, and faults.
- Return by boat, relax, and give back the equipment.
The actual time underwater can feel shorter than the total outing. Boat travel and instruction are not wasted time, especially for a first session, but experienced divers may wish for a longer swim. One participant described wanting more time in the water, which is a fair criticism if you already have a strong scuba background.
For a beginner, the length is more forgiving. You have time to settle in without turning the day into a full expedition. It also leaves room for the boat ride and explanations about the coast.
Why the marine biologist guide matters

A standard instructor teaches you how to operate safely. A marine biologist can add another layer by explaining why the animals live where they do and how the volcanic seabed shapes the local ecosystem.
That difference is easy to miss when you are concentrating on your mask and breathing. Once you are comfortable, the guide can point to a fish nursery, a camouflaged octopus, a sponge growing on basalt, or a gorgonian among the rocks. You begin looking for patterns rather than waiting for something large to appear.
The coastal explanation continues above water. The crew has shared information about the Cyclopean Isles, the volcanic coast, and Etna’s connection to the area. If you enjoy natural history, this makes the boat ride more useful.
Andrea’s calm teaching style is a major part of the experience. Jerry has also been praised for marine explanations and for helping with snorkeling. The names may change depending on the day, but the team’s approach is consistent: explain clearly, stay close, and let you gain confidence at your own speed.
Is $82 a fair price?

At $82 per person, the cost is fair for a guided scuba session that includes professional instruction, equipment, a boat trip, and access to the Cyclopean Isles area. You are not paying only for a tank and a swim. You are paying for staff, safety supervision, transport on the water, and interpretation of the marine setting.
The value is strongest for beginners. Hiring equipment separately, arranging a boat, and finding an instructor would be more complicated, and you would lose the benefit of one coordinated team. The tour also removes much of the guesswork for someone who wants to try scuba without committing to a full certification course.
Experienced divers may judge the value differently. A 3.5-hour outing with preparation and boat travel may not provide enough underwater time for a serious dive day. If you want several descents, greater depth, or technical instruction, look for a specialist package instead.
The price does not include hotel transfers. That matters if you are staying outside Catania or do not have easy access to the meeting point. Add your own transport costs before comparing this with a hotel-based excursion.
Practical advice before you book

Book this early in your Catania stay if scuba is important to you. Weather, sea conditions, or jellyfish can affect the plan, and leaving the activity until your final day gives you no room for a changed departure or a second attempt.
Choose a morning session if the available schedule suits you. One successful alternative to a jellyfish-affected afternoon was an early outing the next day, though you should not assume a particular marine condition at a particular hour.
Wear a swimsuit and bring whatever personal items you need for time on the boat. The provided details do not specify towels, meals, or photography as guaranteed inclusions, so ask before relying on those extras.
Photos and videos have sometimes been taken by the instructor and shared afterward, but this is not listed as a standard inclusion. Treat it as a possible bonus, not something to expect.
You can cancel up to 24 hours before the start for a full refund, and the reserve-now, pay-later option helps if your Sicily plans are still shifting. Those policies make it easier to book ahead without locking up your budget immediately.
Who should choose this Catania sea trip?
Choose it if you want:
- A first scuba experience with patient instruction.
- A small-group setting with frequent checks in the water.
- Volcanic rock formations rather than a featureless sandy bottom.
- Marine life explained by a guide with biology training.
- A half-day outing near Catania and Aci Trezza.
- A boat trip that can suit a mixed group of divers and snorkelers.
Think twice if you want:
- A long, advanced session with several descents.
- Guaranteed sightings of octopus, starfish, or crabs.
- Hotel pickup and drop-off.
- A fixed route regardless of sea conditions.
- A fully dedicated sightseeing cruise instead of a scuba-focused outing.
Should you book it?
I would book this if you are curious about scuba but want a careful introduction rather than a rushed thrill. The instructors’ calm explanations, close underwater support, and marine biology focus give the $82 price real value.
I would also choose it for the setting. Swimming over Sicilian lava, through basalt formations and white sand, feels more distinctive than a generic beach lesson. Just allow extra time, accept that nature sets the schedule, and do not expect a long technical session.
If you are a nervous beginner, this is one of the better ways to try scuba near Catania. If you are already an advanced diver, book it for the geology and local marine life, not for maximum depth or hours underwater.
FAQ
Where does the scuba tour start?
The experience starts at Etna & Sea Excursions. Hotel pickup and drop-off are not included.
How long does the experience last?
The stated duration is 3.5 hours. The boat itinerary may take closer to four hours, so allow some extra time when planning your day.
Is the tour suitable for someone who has never scuba dived?
Yes. The instructors explain the equipment and safety steps carefully, repeat the briefing in the water, and provide close support for beginners.
What can I see underwater?
You might see bream, octopus, sponges, gorgonians, starfish, crabs, and other marine life. The route also includes volcanic features such as basalt columns, lava ropes, pillow formations, underwater canyons, and faults.
Is equipment included?
Yes. Diving equipment and a professional guide are included in the price.
Who should not take this activity?
The activity is not suitable for pregnant women or people with heart problems or high blood pressure. If you have another medical concern, seek advice before booking.
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