Aci Trezza Boat Tours

Aci Trezza: The Village Under the Faraglioni

Aci Trezza is a small fishing harbor on Sicily’s Ionian coast, about 9 to 12 kilometers north of Catania depending on how you measure it, folded into the black lava coast under Mount Etna. Offshore, a cluster of dark basalt sea stacks breaks the water: the Faraglioni dei Ciclopi, columns of rock formed underwater roughly half a million years ago as slow-cooling lava crystallized into shapes that resemble organ pipes up close. Local tradition has long linked these rocks to Homer’s Odyssey, where the blinded Cyclops Polyphemus hurls boulders at Odysseus’s fleeing ship in Book 9. Nobody can prove the stacks off Aci Trezza are the same rocks Homer had in mind, but the identification has stuck for centuries, and it’s a large part of why boats keep coming out here.

The rocks and the sea around them form the Area Marina Protetta Isole Ciclopi, a 628-hectare reserve split into three zones with different rules: no anchoring close to Isola Lachea, guided-only landing on the island itself, and looser limits further out toward Aci Trezza’s harbor. The village carries its own literary weight too. Giovanni Verga set his 1881 novel I Malavoglia here, following a family of local fishermen, and Luchino Visconti shot La Terra Trema on location with real Aci Trezza fishermen as the cast, filming through the winter and spring of 1947 and 1948. Boat tours out of Aci Trezza sail past all of this, not just the rock formations.

This page covers the village and the trips that either leave from it or sail out to it. For evening departures generally, see our sunset boat tour guide; for gear, marine life and swim spots along the whole coast, see our snorkeling tour page; and if you’d prefer to sail, our sailing tour page covers the wind-powered options from Catania port.

Quick verdict: is an Aci Trezza boat tour worth it?

Yes. If you are taking only one short boat trip around Catania, Aci Trezza is one of the best places to do it. Within minutes of leaving the little harbor you are under the black Faraglioni, looking across to Lachea Island, and swimming in the protected water of the Cyclops Islands marine reserve.

The coastline is unusually concentrated. The sea stacks rise just offshore, Lachea sits among them, and the cliffs and seabed show the same volcanic story that shaped Etna’s eastern flank. The reserve is also one of the better places near Catania for a swim or a casual snorkel: the University of Catania describes the seabed here as highly biodiverse, with salema, mullet and many small invertebrates living on the volcanic rock.

The choice that matters most is where you start:

• Start in Aci Trezza if you mainly want the Faraglioni, Lachea Island and a quick swim. A trip of one to two hours from the village pier is the simplest way to do it.
• Start in Catania or Ognina if the journey itself matters and you want several hours of sailing, food, snorkeling and more of the coastline. Those trips usually take three to five hours.

Aci Trezza boat tours at a glance

That spread matches what is on sale: Aci Trezza’s own boats mostly run trips of around two hours, while the Catania sailing trips usually take about four hours and include a swim, snorkeling gear and food.

A few things hold for almost every trip here. The best swimming months are roughly June to October. The main sights are the Faraglioni dei Ciclopi, Lachea Island, Aci Castello and the volcanic coastline. And it is not a tropical coral reef, so expect clear water and lava rock; wildlife is never guaranteed.

What do you actually see on an Aci Trezza boat tour?

1. Faraglioni dei Ciclopi

These jagged black stacks are the defining image of Aci Trezza. From the promenade they look picturesque. From a small boat they feel much larger and stranger, with steep volcanic faces rising almost vertically out of the Ionian Sea.

The science is as interesting as the legend. The University of Catania dates the volcanic formations around Aci Trezza to roughly 500,000 years ago, linked to ancient submarine eruptions in the gulf. The myth gives you the more memorable version: in the Odyssey tradition, these are the rocks the Cyclops Polyphemus hurled at Odysseus as he escaped by sea. Geology and myth together are one reason this coast works so well with a good skipper or guide.

2. Isola Lachea

Lachea is the largest of the Cyclops Islands and sits just off Aci Trezza. With the Faraglioni it forms an integral nature reserve managed by the University of Catania, home to marine life and to a local form of the Sicilian wall lizard, Podarcis siculus ciclopica.

Lachea is not an island where boats pull up wherever they like. The water around it is divided into management zones. Zone A, the strictest, covers the sea around Lachea and the largest Faraglione, and swimming there is allowed only in marked areas; commercial passenger boats and navigation are regulated too. When a tour advertises “Lachea Island”, it usually means cruising and swimming around the island, not landing and walking on it, so do not book on the strength of “visit Lachea” and expect to step ashore.

3. The columnar basalt

One detail that is easy to miss from land is the columnar basalt. When lava cools and contracts in the right conditions it can fracture into angular columns, and seeing them at water level explains why the Aci Trezza coast looks so different from Sicily’s sandy beach resorts. Short local boats often slow down around these formations. The Odissey Faraglioni Boat Tour with Swim Stop, for example, combines the Faraglioni, Lachea Island, the basalt columns and Aci Castello with a quick swim.

4. Aci Castello

Many Aci Trezza tours continue south toward Aci Castello, where the Norman castle sits on a black volcanic promontory above the sea. It is a much stronger view from the water than you might expect, and our guide to Aci Castello by boat shows which trips pass it and which stop to swim. From the shore you see a castle on a cliff; from the boat you see the castle, the lava crag and the sea as one formation, and its defensive position makes sense. Some short tours turn back around this point, while longer trips continue toward Catania.

5. Ulysses’ Caves

Longer routes toward Catania may also pass the Grotte di Ulisse, the Ulysses’ Caves. Getting in depends on the boat and the sea, so we would not choose a tour for the caves alone. The 90-minute Cyclops Coast Boat Tour with Swim Stop from Aci Trezza, for example, enters the caves only when the sea allows, before a swim inside the protected area. Treat a cave visit as a possible bonus.

What is snorkeling like at Aci Trezza?

Aci Trezza is a good Mediterranean snorkeling spot, as long as you know what to expect. You are not coming for tropical coral gardens. The draw is the combination of:

• clear Ionian water
• black volcanic rock
• underwater lava formations
• small Mediterranean fish
• algae and marine plants
• protected marine habitats
• the Faraglioni above you when you lift your head

The University of Catania lists a broad range of fish and invertebrates on the Cyclops seabed, including salema, mullet, blennies, hydroids and nudibranchs. For the best swim spots along the whole coast, see our Catania snorkeling tour page.

Is the water clear?

Often, yes. The university notes that local currents help keep the coastal water clean and transparent. That is not a promise of perfect visibility every day, though: wind, waves, recent weather and the exact swim spot all make a difference.

Do you need to be an experienced snorkeler?

Usually not. Most sightseeing-and-snorkeling trips are aimed at ordinary visitors, not experienced freedivers, and several provide masks, snorkels and life jackets. Operators do differ: Jonio Pro-Dive, which runs snorkeling boats from Ognina, asks for at least basic swimming ability for its swim stops.

If you are not confident in open water, look for:

• flotation aids or life jackets
• an easy ladder back onto the boat
• supervised swimming
• a clearly stated beginner-friendly format
• the option to stay on board

You do not have to snorkel to enjoy the trip.

Best type of Aci Trezza boat tour

Best for most visitors: 2-hour small-group boat tour

For a first visit, about two hours is the right length. It is long enough to pass close to the Faraglioni, see Lachea, hear the basic geology and the Cyclops story, continue toward Aci Castello and stop for a proper swim or snorkel, and it does not take up most of your day.

Two small-group trips of this length leave from the same seafront pier. The Boat Excursion to Acitrezza with the Faraglioni and Snorkeling is built around swimming and snorkeling stops, with no fixed itinerary, and is rated 5.0/5 from 33 reviews. The Boat tour to Aci Trezza with the chance to see dolphins times the same coast for the evening light and has the longer record, 4.9/5 from 105 reviews. Both cost from $57. Choose this format if you are already staying near Aci Trezza or can get there easily from Catania.

Best if you’re short on time: 45–90 minute tour

You can also find very short trips. The 45-minute Odissey Faraglioni Boat Tour with Swim Stop covers the Faraglioni, Lachea, the basalt columns and Aci Castello with a quick swim, from $22; it is rated 4.0/5 from 19 reviews, a short and mixed record. The 90-minute Cyclops Coast Boat Tour with Swim Stop adds more commentary and time along the coast, from $28, although it has only 6 reviews so far (4.3/5). These suit you if seeing the coast from the water matters more than a long swim.

The downside

A 45-minute trip is tight. Once you count leaving the harbor, the sightseeing, the commentary and the return, the swim cannot last long. If snorkeling is one of your main reasons for booking, we would aim for at least two hours.

Best for the complete experience: 3–5 hour tour

If your ideal afternoon is sail, swim, snorkel, eat, relax and sail back, a longer boat is the better buy. The Catania sailing trips usually run about four hours and combine the Cyclops Coast with snorkeling gear and a Sicilian aperitivo (our Catania boat tour with aperitivo guide compares what each boat serves). The Sail Tour of Cyclops Coast with Sicilian Aperitif (our breakdown) includes snorkel gear, a stand-up paddleboard, sparkling wine and local snacks, from $50 plus a €20 boarding fee paid in cash. This format is much less rushed than a short sightseeing boat.

Best for groups: private charter

Private boats make the most sense when several people can split the cost. The route is often the same coastline. What you pay for is:

• no strangers on board
• more control over swimming time
• your own pace
• easier arrangements with children
• more space
• the chance to adjust lunch or the stops

The Private Sailing tour along Catania & Cyclops coast (our breakdown) runs about four hours on a sailing boat from Catania’s Vecchia Dogana, with stops at the Ulysses’ Caves, Aci Castello and Acitrezza, at $609 per group of up to twelve plus a cash skipper fee, rated 5.0/5 from seven reviews. For two people a private boat can feel expensive; for six or eight the sums look much better. Our private boat tour page compares the whole-boat options.

Aci Trezza departure vs Catania departure

This is the most useful comparison to make before you book.

Leave from Aci Trezza if you want…

• the shortest route to the Faraglioni
• less time spent travelling along the coast
• a cheaper trip
• a one- to two-hour outing
• more sightseeing per minute
• to combine the boat with lunch or dinner in Aci Trezza

You are already beside the main sight, and within minutes you are among the Cyclops Islands.

Best choice for:

Day-trippers, families, travelers on a budget and anyone mainly interested in the Faraglioni.

Leave from Catania if you want…

• the pleasure of sailing itself
• a half-day outing
• an aperitivo or lunch
• more time on deck
• more than one chance to swim
• the whole run of coast up to Aci Trezza
• no need to arrange your own transport to Aci Trezza

The four-hour Sail Tour of Cyclops Coast with Sicilian Aperitif sails north to Aci Trezza for an hour of swimming and snorkeling and serves sparkling wine and local snacks at anchor.

Best choice for:

Couples, groups of friends and travelers who see the boat trip as the day’s main activity.

Leave from Ognina if you want a middle ground

Ognina lies on Catania’s northern seafront and cuts some of the time it takes to reach the reserve from the main port. Jonio Pro-Dive runs a three-hour boat trip from Ognina via Aci Castello and the Cyclops Islands toward the Timpa di Acireale, with snorkeling around Lachea and the Faraglioni. It is sold only on the operator’s own site, and it sits between a quick Aci Trezza ride and a full sailing day from central Catania.

Trips That Leave From Aci Trezza Itself

Two boats on this site depart from the same pier on Aci Trezza’s seafront, Via Lungomare dei Ciclopi. The Aci Trezza sunset boat tour (our breakdown) is a two-hour run timed for the evening light, with a swim if the sea allows and dolphins that turn up on some crossings but not on a schedule. The Acitrezza Faraglioni snorkeling tour (our breakdown) leaves from the same pier at a similar length, built around swim stops and snorkel gear instead of the sunset. Both are short enough to fit around a day already spent in the area, and neither asks you to travel into Catania first.

Trips From Catania Port That Sail to Aci Trezza

Three longer trips leave from Catania itself and use Aci Trezza as a stop on a wider route. The Catania boat trip with aperitif, prosecco and snorkeling (our breakdown) leaves from Blu Marina near the old fish market and runs about five hours, sailing past Ognina and the Ulysses Caves before a snorkeling stop at Aci Trezza. The Catania sail tour of the Cyclops coast (our breakdown) departs through the Dogana Gate to the Club Nautico dock, and the Cyclops Coast cruise (our breakdown) leaves from the Vecchia Dogana on Via Cardinale Dusmet; both sail up the coast to the Faraglioni for a swim stop before turning back.

One more trip needs flagging here. The boat tour and snorkeling at the Cyclops Islands (our breakdown) is marketed under Catania’s name but actually departs from Aci Castello, a few kilometers south of Aci Trezza. If you specifically want to start or end your day in Aci Trezza’s own harbor, check the meeting point on any “Catania” listing before you book.

How much do Aci Trezza boat tours cost?

Prices change with the date, the boat and demand, so treat these as a guide. On GetYourGuide in October 2026:

• the short swim-stop trips from Aci Trezza start at $22 for 45 minutes and $28 for 90 minutes
• the two-hour small-group trips from the village pier start at $57
• the four- to five-hour sails from Catania start at $50 to $77 per person, plus a cash fee on the day
• private boats start at $609 per group of up to twelve, plus a cash skipper fee, for a sailing yacht on the Cyclops coast

Check for extra charges

Do not compare tours on the headline price alone. Check whether the price includes:

• the skipper
• fuel
• snorkeling gear
• drinks
• an aperitivo
• a SUP (stand-up paddleboard)
• port fees
• towels

Several of the Catania departures add a boarding or skipper fee in cash at the dock: €20 per person on the Sail Tour of Cyclops Coast, €15 on the Cyclops Coast Cruise with Appetizer & Snorkeling and €10 on the Boat Trip with Aperitif, Prosecco and Snorkeling. A fee like that can make two similar-looking tours less similar than they first appear, so carry some cash whichever trip you book.

When is the best time to go?

The sea temperatures below are long-term monthly averages for the sea off Catania; our best time for a boat trip guide has the full month-by-month table, and our guide to morning, afternoon or sunset covers the time of day.

June

A good balance between pleasant water and fewer people than in high summer. The sea averages about 23°C, and it is a good month for sightseeing plus a swim.

July and August

Best if you want the warmest water, which averages about 26°C in both months. These are also the busiest months, so book the popular small-group tours ahead.

September

Our favorite month for this trip. The sea keeps most of its summer warmth, about 25°C on average, while the holiday crowds start to thin. For swimming and snorkeling, September is hard to beat.

October

Still a realistic month. The sea averages about 23°C, although the days are less reliably beach weather and a change in the weather becomes more likely. The season runs past high summer: one Aci Trezza sailing trip listed on the regional Visit Sicily site runs until 31 October.

May

A lovely month for the boat ride, but the water is noticeably cooler, about 19°C on average. If a swim is optional for you, May can be excellent. If snorkeling is the reason you are booking, June onward is the safer choice.

Morning or afternoon?

Choose morning for:

• calmer-feeling water on many days
• cooler temperatures in high summer
• serious snorkeling
• families with young children
• sightseeing while everyone still has energy

Choose late afternoon for:

• softer light
• a more relaxed feel
• couples
• aperitivo trips
• combining the tour with the sunset

The actual sea state matters more than the clock. A responsible operator will move or cancel a departure if conditions are not suitable. On the 90-minute Cyclops Coast Boat Tour with Swim Stop, the skipper confirms the departure time the day before, and if the sea is not suitable you can reschedule or take a full refund.

Is Aci Trezza good for families?

Yes, particularly on the shorter tours. A boat ride of 90 minutes to two hours feels like an adventure without keeping children on board for half a day. The things we would check are:

1. Minimum age
2. Life jackets for children
3. Shade
4. A toilet on board
5. How easy the boarding ladder is
6. Whether swimming is optional
7. Maximum group size

Policies vary a lot. The four-hour Sail Tour of Cyclops Coast with Sicilian Aperitif from Catania is not offered to children under five, so do not assume every “family-friendly” boat takes toddlers.

What should you bring?

For a summer trip:

• swimsuit
• towel
• sunglasses
• a sun hat that stays on
• high-SPF sunscreen
• drinking water
• phone or camera
• waterproof phone pouch
• light cover-up
• sandals or non-slip shoes
• motion-sickness medication if you know you need it

If snorkeling gear matters to you, confirm what is included before booking. Several trips provide a mask and snorkel, but inclusions vary. Bring some cash too, for any boarding fee and for a small tip: a euro or two per person for the skipper is common practice on short Italian boat excursions and appreciated, though not expected.

One useful addition: rash vest

A lightweight rash vest or swim shirt is a real help here. It protects your back and shoulders from the sun while you snorkel, so you can stay in the water without worrying about burning.

Can non-swimmers take an Aci Trezza boat tour?

Often yes, if you choose the right trip. The sightseeing part does not involve swimming, and many boats simply stop where swimming is possible while you stay on board. Not every trip is suitable, though: the 45-minute Odissey Faraglioni Boat Tour with Swim Stop lists non-swimmers among the people it is not suitable for, so read the operator’s wording before you book. As a non-swimmer, look for a stable sightseeing boat with life jackets and an optional swim; a snorkeling-focused trip is the wrong fit.

Is it safe to snorkel around the Faraglioni?

It can be, as long as you swim where the skipper tells you. This is a busy boating area and a protected marine reserve with zones and navigation rules. Zone A, around Lachea and the largest Faraglione, has particularly strict controls, while anchoring and boating are regulated elsewhere to protect both swimmers and the seabed.

Don’t:

• swim off on your own toward another rock
• climb onto the protected formations
• collect shells or marine life
• touch wildlife
• assume every part of Lachea is open for swimming
• jump in before the crew says it is safe

Following the local skipper matters more here than picking the spot that looks prettiest in photos.

What is the Cyclops Islands Marine Protected Area?

The Area Marina Protetta Isole Ciclopi protects the sea around Aci Castello and Aci Trezza. Italy’s environment ministry gives its size as 628 hectares, divided into zones with different levels of protection. It is more than a label on a boat-tour listing: passenger boats, diving, anchoring, fishing and other activities each have their own rules, and the reserve’s 2026 regulations carry over the rules set for 2025. Keep that in mind when you compare an authorized excursion with a casual boat rental; our boat rental guide covers what a self-drive boat can and cannot do here.

Can you visit Lachea Island itself?

Do not count on it. In October 2026 the University of Catania lists the island’s museum as temporarily closed to the public, and guided visits to the island have been suspended before. The island and the water around it are highly protected, so an ordinary boat trip is about seeing Lachea from the water and swimming in the permitted areas nearby, not landing for a walk. If going ashore matters to you, check the latest access with the university before booking.

How do you get from Catania to Aci Trezza?

Aci Trezza sits roughly 9 km from Catania as the crow flies, about 11.6 km by road. For a fuller comparison of basing yourself in Catania or heading straight to Aci Trezza, see our Catania or Aci Trezza guide, and for every meeting address on the coast, our guide to where Catania boat tours leave from.

By bus

AMTS, Catania’s city bus company, runs line 534 between Catania and Aci Trezza by way of Aci Castello, and the longer line 434 from Stazione Centrale through Aci Castello to Piazza delle Scuole in Aci Trezza. That makes a boat tour from the village practical without a car. Check the current timetable for your travel date, since schedules change.

By taxi or rideshare

The simplest option if you have an early departure or several people sharing the fare, and it saves matching a boat check-in to a bus timetable. A taxi typically takes 13 to 15 minutes and costs somewhere around €32 to €41, though that comes from a routing estimate, not an official tariff, so agree the price before you set off.

By car

Possible, but parking can be difficult on busy summer days and weekends. If your boat has a fixed departure time, allow extra time so you are not circling the seafront looking for a space five minutes before check-in.

Should you book ahead?

July and August: yes

Especially for:

• small-group boats
• sunset departures
• private charters
• weekend departures
• tours with fewer than 10 passengers

May, June, September and October

You usually have more flexibility, but we would still reserve the tour you want instead of hoping to find the same format on arrival. The main reason to book ahead is getting the right kind of boat, more than any risk of selling out. A 45-minute sightseeing ride and a four-hour sail with snorkeling are very different days.

What happens if the sea is rough?

Trips can be changed, shortened, postponed or cancelled. That is normal, and better than an operator running a trip in poor conditions. The Faraglioni may be only a few hundred meters offshore, but wind and waves still affect small boats. On the 90-minute Cyclops Coast Boat Tour with Swim Stop, for example, the departure is confirmed according to the sea, and unsuitable conditions mean a new date or a refund.

Booking tip

If you can, schedule the boat trip early in your stay in Catania instead of on your last afternoon. Then you still have a spare day if the weather forces a change.

Aci Trezza boat tour vs seeing the Faraglioni from shore

You can enjoy Aci Trezza without getting on a boat, since the Faraglioni are visible from the waterfront. The two experiences are not the same, though.

From shore you get:

• the classic postcard view
• easy photographs
• cafés and restaurants nearby
• no cost
• no seasickness

From the boat you get:

• a sense of scale
• close-up volcanic geology
• Lachea from several angles
• the castle from the sea
• a swim or snorkel
• parts of the coast hidden from the road
• a much clearer idea of why this is called the Riviera dei Ciclopi

If your budget allows, do both: walk the Aci Trezza waterfront first, then take the boat. You will understand what you are looking at far better afterward.

Aci Trezza boat tour vs Catania sailing tour

Our pick

Choose Aci Trezza if the Cyclops Islands are the goal. Choose a Catania sailing tour if several hours on a sailboat are the goal. Our Catania sailing tour page compares the sails in detail.

Who should skip the boat tour?

You may prefer to stay on land if:

• you are very prone to seasickness
• you do not enjoy small boats
• you have mobility limitations that make boarding difficult
• the weather is marginal
• you only want a quick photo of the Faraglioni
• you are visiting in winter and have no interest in swimming

For everyone else, Aci Trezza is one of those places where being on the water adds far more than it does at an ordinary beach resort.

Our recommended Aci Trezza itinerary

If you are coming from Catania for the day, this is how we would spend it.

Late morning

Travel to Aci Trezza and walk the waterfront.

Lunch

Keep lunch light before you board.

Early afternoon

Take a boat trip of about two hours around the Faraglioni, Lachea and Aci Castello with a swim or snorkel stop, such as the Boat Excursion to Acitrezza with the Faraglioni and Snorkeling.

After the boat

Stay for a drink or a granita overlooking the sea.

Late afternoon

Walk or travel down to Aci Castello and see the castle from land after seeing it from the water. It is a compact outing, and it gives you both views of the Cyclops Riviera.

Bottom line

Aci Trezza is not just the nearest place to Catania where someone happens to run boat trips. The boat is one of the best ways to understand the place. The Cyclops Islands are compact enough that even a short trip works: the Faraglioni rising from the sea, Lachea inside a protected marine landscape, Aci Castello above its lava promontory, and black volcanic rock continuing under the water.

For most travelers, we would choose a small-group trip of about two hours from Aci Trezza itself, with time for one unhurried swim or snorkel; the Boat tour to Aci Trezza with the chance to see dolphins has the strongest review record of those. Choose a 45- to 90-minute trip if you are mainly sightseeing. Move up to a three- to five-hour sail from Catania if you want the boat to be the day out, with an aperitivo, a swim, snorkeling and several hours on the Ionian Sea.

And do not overthink the snorkeling. Nobody comes here to tick off one particular fish. You come to float in clear water between volcanic rocks with the Faraglioni above you, one of the rare places where Sicily’s geology, myth and sea all make sense together.

Check dates for the Aci Trezza sunset boat tour.