Zakynthos: Marathonisi, Cameo Island and Keri Caves Tour

The best part of this Zakynthos outing is the mix of turtle spotting and swimming. You cruise the southern coast by glass-bottom boat, watch for Caretta Caretta turtles, stop at Marathonisi’s soft sandy beach, and swim beside the Keri Caves. It packs several of the island’s signature sights into five hours.

I like the easy hotel pickup and the good variety: Cameo Island gives you a photogenic bridge and a short swim, Marathonisi gives you beach time, and the caves add dramatic rock scenery. The free olive oil tasting at Aristeon is also a useful taste of local life, not just another beach stop.

The main catch is timing. This is a group tour, and some departures feel rushed, crowded, or affected by boat and minibus changes. Turtle sightings are never guaranteed, and the €5 Cameo entry fee, food, drinks, towels, and snorkeling gear are extra.

Key points to know before booking

• Turtles are possible, not promised: The boat crew may spot one or several Caretta Caretta turtles, but late-season sightings can be limited.
• Marathonisi is the main beach break: You get about an hour to swim, snorkel, relax, or buy refreshments from floating canteens.
• Cameo Island costs €5: The bridge and clear water make it worthwhile for many people, but the stop can be too short for some.
• The glass-bottom boat is modest: It lets you look below the surface, though the viewing panel is smaller than some first-time visitors expect.
• The Keri Caves are scenic from the water: You pass cliffs, rock arches, and Kamara before a swim near a cave entrance.
• The olive oil stop adds local flavor: At Aristeon, you learn about production and taste olives, bread, and flavored extra virgin olive oils.

A five-hour tour with a lot packed in

At $66 per person, this is a fairly priced introduction to southern Zakynthos if you want transport, boat tickets, several swim stops, and a tasting in one outing. You are not paying for a private cruise or a slow island day. You are paying for a full half-day of moving between several popular places without arranging separate taxis, boats, and beach stops.

Dali Tours provides pickup and drop-off within 10 kilometers of its office on Lomvardou 20 in Zakynthos Town. Pickup areas include Laganas, Kalamaki, Argassi, Lithakia, Planos, Kipseli, Vanato, Zakinthos, and Ano Vasilikos. Cruise passengers can also arrange pickup at the cruise terminal, with timing adjusted to the ship schedule.

The vehicle is usually a small minibus. It has air conditioning, but a nine-seater can feel cramped, especially if the group is full. Transfers take about 30 minutes at the start and end, plus a shorter ride between the port and olive press. Allow some patience when different groups are being sorted between vans and boats.

Guide quality can shape the day. George is often singled out for friendly, useful island commentary, while Nicholas, Sakis, Dimitros, and Ilias have also been praised for helping the day run well. Still, the amount of explanation can vary. Some departures have a proper guide, while others rely mainly on a driver and a boat captain.

Cameo Island and the little bridge from Agios Sostis

The outing normally begins at the small port of Agios Sostis, near Laganas. From here, you first see Cameo Island by crossing its wooden footbridge. The bridge is one of the most recognizable photo spots in this part of Zakynthos, and the island itself has a storybook look, with pale rock, green vegetation, and clear water around it.

You usually have about 30 minutes for the visit, a swim, and photographs. That is enough for a quick look, but not enough for a lazy beach session. The island charges €5 per person, and this fee is not included in the tour price.

I would pay the fee if you enjoy photographs, small scenic places, and a quick swim in clear water. If you care more about maximizing time on Marathonisi, you can skip the entry and wait near the port. One useful warning: some departures have had less than 30 minutes before boarding the boat, so do not expect an extended visit.

The water around Cameo is especially clear. Small fish may nibble at scratches or flakes on your skin, which does not hurt but can surprise you. Wear swimwear under your clothes so you can use this stop without wasting time changing.

Turtle spotting in the National Marine Park

After Cameo, you board the glass-bottom boat for the cruise through the National Marine Park of Zakynthos. The central hope is to see Caretta Caretta loggerhead turtles, the protected animals that use the southern Zakynthos coast for nesting.

The glass panel gives you a chance to look into the water as the boat moves, and the captain may slow down when a turtle appears. You might see one almost immediately, or several during the trip. Some departures have seen three turtles, while others, especially late in the season, have seen none.

That uncertainty matters. This is a turtle-spotting trip, not a guaranteed wildlife encounter. The boat crew should keep a respectful distance and avoid disturbing the animals. You watch from the boat rather than swim with them. If your main goal is wildlife, choose a date earlier in the warmer season if you can, though sightings still depend on nature.

The boat itself is comfortable enough for a short cruise, but capacity can affect the experience. Groups of around 24 people may feel squeezed, particularly during the longer stretches between stops. The glass-bottom section is useful, but it is relatively small, not a huge transparent floor across the boat.

Bring sunscreen, a hat, sunglasses, and a camera. The boat can move quickly, and spray may reach you. One October outing left people wet and chilly, so pack a change of clothes even if the day begins hot.

Marathonisi, the turtle-shaped island

Marathonisi is the most relaxing stop on the route. From the water, its outline resembles a turtle, which explains the nickname Turtle Island. It is green, unbuilt in the usual resort sense, and protected as part of the marine park.

You get about one hour on or near the beach. This is your chance to lie on the pale sand, swim in warm clear water, or snorkel along the shallows. Several people consider this the best part of the day because it feels less hurried than the short Cameo stop.

The beach is attractive, but do not treat Marathonisi as a fully serviced resort. There are no toilets on the island, and the boat is also without a toilet. Use the facilities before boarding at the port. Floating canteens offer snacks, soft drinks, ice cream, and alcoholic drinks, but bring cash so you are not caught without a way to buy something.

Food and drinks are not included. Snorkeling equipment and towels are also not included, so pack your own gear if you have it. The clear water is well suited to a simple mask and snorkel, and several people specifically recommend bringing one.

The marine park rules matter here. Look for marked areas and do not walk into protected nesting zones. Keep your distance from any wildlife, leave the sand and nests alone, and take your rubbish with you. The beauty of Marathonisi depends on visitors treating it as a protected place rather than an ordinary beach.

An hour passes quickly. If you want a long, quiet beach day, book a dedicated boat trip instead. If you want one strong beach break as part of a wider tour, the timing works well.

The Keri Caves and Kamara rock arch

Back on the boat, you follow Zakynthos’s southern coast toward the Keri Caves. Wind, waves, and time have cut openings into the pale limestone cliffs. The route also brings views of white beaches, rock arches, wooded hills, and steep cliffs dropping into the sea.

The boat passes through the famous Kamara arch when conditions allow. This is a scenic part of the cruise, but keep your expectations sensible. The caves are viewed from the boat, and the stop is more about coastal scenery than a long underground exploration.

There is usually a 20-minute swim near the entrance to a large cave. The water can look intensely clear, and swimming beside the cliffs gives the outing a different feel from the open beach at Marathonisi. If you are not a confident swimmer, tell the crew. One useful feature of the boat is that it can approach close to the sand when dropping people at the beach.

Some departures spend more time cruising and less time swimming. Others may adjust the swim stops because of sea conditions or group preference. Pack flip-flops for the shore, but expect wet footing and bring a towel and dry clothing for the ride home.

Aristeon Olive Oil Press in Lithakia

After returning to port, you take the minibus to the Aristeon ecological olive oil press museum in Lithakia. The visit usually lasts about 30 minutes and gives the tour a welcome connection to everyday Zakynthos.

You learn how olive oil is made on the island, see the traditional production setting, and taste local olives with bread and several extra virgin olive oils. Flavors commonly include lemon, orange, and garlic. Bottled oils, olives, and beauty products are available if you want a practical souvenir.

I like this stop because it explains something you will see everywhere in Greece: olive trees are not background decoration. They are part of the island’s food, work, and household life. The tasting also helps you notice how different flavored oils work with simple bread.

The tone is partly commercial. The olive press is a shop as well as a museum, and the presentation may focus more on tasting and buying than on a long cultural lesson. One visitor found the talk in the heat less interesting than the beach stops, while others appreciated the guide’s explanation, including a German-language presentation on one departure.

If you prefer nonstop swimming, this is the easiest part of the tour to question. If you enjoy food traditions or want to take home something made on Zakynthos, it earns its place.

How well does the timing work?

On paper, five hours sounds generous. In practice, the day includes hotel pickup, a minibus transfer, boat boarding, several stops, a return transfer, and the olive press. That leaves only short periods at each attraction.

The listed timing gives about 30 minutes at Cameo, one hour around the marine park, one hour at Marathonisi, 30 minutes at the Keri Caves, and 30 minutes at Aristeon, with driving time around the edges. Actual timing can shift. Some departures have felt closer to three hours of activity once waiting and transfers were removed, while others have spent about three hours on the boat alone.

You may also change vehicles. Groups can wait while vans are combined or separated, and one departure had a delayed pickup from Turtle Island. Clear instructions are important, especially if you are traveling with children or anyone who finds heat and waiting difficult.

The operator offers free cancellation up to 24 hours before departure and allows you to reserve without paying immediately. More important for the day itself, the boat may be cancelled or moved in bad weather. A previous departure was shifted to the following morning without trouble, which is useful if you have flexibility.

What to pack for this particular outing

Wear your swimsuit under your clothes. There are several water stops, and changing on a small boat or on Marathonisi is not practical.

Pack:

• Towel and a change of clothes
• Sunscreen, sunglasses, and a sun hat
• Camera or waterproof phone case
• Snorkel and mask, if you have them
• Flip-flops or secure beach footwear
• Cash for the €5 Cameo fee and floating canteens
• Bottled water, although a bottle is included

There are no toilets on the boat or Marathonisi. Make a toilet stop before you board. Bottled water is included, but other food and drinks are not.

The tour is not suitable for wheelchair users or people with mobility impairments. You must manage a small port, boat boarding, a bridge, beach access, and wet surfaces.

Who will get the most from the $66 price?

I think the price works best for first-time visitors who want a broad taste of southern Zakynthos in half a day. You get transportation, a boat ticket, turtle spotting, two swim areas, cave scenery, a local tasting, and hotel return without planning each piece yourself.

Families can enjoy the variety, and the swimming stops suit teenagers particularly well. Cruise passengers also benefit because the operator can coordinate pickup and return with the ship schedule. The tour is a practical choice when you have limited time on the island.

The value is weaker if you want space and a slow pace. A full boat can feel tight, the minibus may be cramped, and you may lose time to group coordination. It is also not ideal if you are booking mainly to see turtles. Nature decides that part.

Should you book the Cameo, Marathonisi, and Keri Caves tour?

Book it if you want an efficient sampler of Zakynthos’s southern coast, especially if you are staying in Laganas, Kalamaki, or nearby resorts. The strongest reasons are the clear-water swimming, the attractive Marathonisi beach, and the chance to see turtles without arranging your own boat.

Think twice if you want a dedicated beach day, a private cruise, or a detailed history tour. In that case, Cameo Island can be visited separately, and a longer boat trip may give you more swim time and less waiting.

For most active visitors, $66 is reasonable for the amount included. Bring cash, your own snorkeling gear, and realistic expectations about turtle sightings. If George, Nicholas, Sakis, or another strong guide is leading your departure, the island commentary can add a lot. If the guide is quiet, the scenery and water still carry the day, but the cultural side will feel lighter.

FAQ

How long is the Zakynthos tour?

The advertised duration is five hours, including transportation between pickup points, the port, the boat, and the olive oil press.

Where does pickup take place?

Pickup is available within 10 kilometers of the provider’s office at Lomvardou 20 in Zakynthos Town. Listed areas include Vanato, Kalamaki, Zakinthos, Lithakia, Kipseli, Laganas, Argassi, Planos, and Ano Vasilikos.

Can cruise ship passengers join the tour?

Yes. Pickup and drop-off can take place at the cruise terminal, and the timing can be adjusted to the cruise ship schedule.

Is the Cameo Island entry fee included?

No. Cameo Island charges €5 per person. This fee is separate from the tour price.

Is food included?

No. Food and drinks are not included. Floating canteens on Marathonisi sell snacks and refreshments, so bring cash.

Are snorkeling equipment and towels provided?

No. You need to bring your own snorkeling equipment and towel if you want to use them.

Are there toilets during the boat trip?

There are no toilets on the boat or Marathonisi Island. Use the facilities before boarding.

Will I definitely see Caretta Caretta turtles?

No. The tour includes turtle spotting, but sightings are not guaranteed. Some departures see one or several turtles, while late-season trips may see none.

Do I swim with the turtles?

No. You watch the turtles from the boat and should not disturb them. Swimming is offered at separate stops near Marathonisi and the Keri Caves.

Is the tour suitable for wheelchair users?

No. The activity is not suitable for wheelchair users or people with mobility impairments.