Zakynthos: Marathonisi, Cameo Island and Keri Caves Tour

Sea, caves, turtles, and olive oil make this five-hour outing an efficient way to see several of southern Zakynthos’ best-known sights. The tour combines a Mercedes-Benz van, a glass-bottom boat, two swimming opportunities, and a tasting stop at Aristeon Ecological Olive Press.

I especially like the beautiful boat route through Keri Caves and the easy hotel pickup across much of the island. George, Christos, and other guides have earned warm praise for being friendly and attentive, but the experience can feel crowded, and turtle watching is not always calm or rewarding.

The tour costs $67.28 per person and is offered in English, with a maximum group size of 23. That price is reasonable if you want transport and several stops arranged for you, but independent visitors may prefer more time at each location and less waiting around.

The Five Things to Know Before You Book

• Cameo Island costs an extra €5: The small entrance fee is not included, and the island can feel crowded.
• The boat carries up to 23 people: Expect a shared outing rather than a quiet private cruise.
• Marathonisi includes a one-hour beach stop: Bring swimwear, sunscreen, and a towel, since you may get wet getting on or off the boat.
• Turtle sightings are not guaranteed: You may see loggerhead turtles, but several boats can gather around a single animal.
• Keri Caves are the scenic high point: The captain takes the boat into small caves and through the Kamara rock arch, then allows about 20 minutes for swimming near a large cave.
• The olive oil tasting adds a local touch: You can sample olives, village bread, and extra virgin olive oils flavored with lemon, orange, and garlic.

A Smooth Start From Your Hotel

The day begins with pickup from your accommodation or hotel, provided you are within the free pickup area, which extends up to 10 kilometers from Dali Tours’ office on Lomvardou 20 in Zakynthos Town. If you are staying farther away, up to about 20 kilometers, pickup and return cost €25 per booking.

You should wait outside your hotel 30 minutes before the scheduled time. Look for a van with the Dali Tours logo on the front windshield. Cruise ship passengers can also join, with pickup times adjusted around tender boats and the ship’s departure schedule.

That cruise arrangement is useful, but it can affect the pace of the outing. If other people are delayed getting ashore, the group may wait. In some cases, that has meant a late start, a skipped Cameo Island visit, or a rushed final schedule. If your ship is in port for only a short time, confirm the pickup plan carefully and allow plenty of time for the return.

Your driver-guide provides a free map of Zakynthos and explains the day before you set off. The quality of the commentary depends on the individual guide. George received especially warm praise for his friendliness, music choices, and care for the group. Other people found communication harder when a driver or boat captain spoke limited English.

Cameo Island and Its Famous White Sheets

Cameo Island sits just off Agios Sostis in southern Zakynthos. You reach it by crossing a wooden bridge, one of the most recognizable photo spots on this part of the coast. White sheets hang above the water, creating a simple but memorable setting that has made the island popular for wedding ceremonies.

You have about 30 minutes here. That is enough to take pictures, look around, and perhaps swim at the small beach. The water is attractive, and the steep white limestone around the cove gives the stop a special sense of place.

Entry costs an additional €5. That fee is small, but it should not surprise you. The island is also compact, so do not expect a long walk or a quiet half-day visit. At busy times, the bridge and beach can be packed, leaving little room to sit or swim comfortably.

The timing can also change if the tour starts late. If you care most about Cameo Island, ask at pickup how long you will have there. The island is photogenic, but its appeal depends heavily on crowd levels and how much time remains in the schedule.

The National Marine Park by Glass-Bottom Boat

After walking back toward the port, you board a glass-bottom boat for a roughly one-hour cruise through the National Marine Park of Zakynthos. The glass panel gives you a chance to look into the water as the boat moves along, and the crew may point out turtles when they surface to breathe or pass beneath the boat.

This is one of the tour’s most appealing ideas: you get a view both above and below the sea. The coast, clear water, and possibility of spotting a loggerhead turtle create the kind of outing that works well for families and first-time visitors to Zakynthos.

There is a serious catch. Turtle watching is unpredictable, and the boats may gather around an animal when one appears. At busy times, several boats can circle the same turtle. That can make the moment feel more like a wildlife traffic jam than a peaceful encounter.

The National Marine Park exists to protect the loggerhead turtles and their nesting grounds. You should take the rules seriously, avoid disturbing marked areas, and keep your expectations realistic. You may see turtles, but nobody can promise a sighting, and the boat crew cannot control how many other boats are in the area.

The boat has no toilet. Use the facilities before boarding, because there are also no toilets on Marathonisi. Bottled water is included in the tour, but the supplied information says it is available in the van. One person expected water on the boat and did not find it there, so carry your own bottle if hydration matters to you.

The boat can also feel crowded. The maximum group size is 23, and some outings have felt cramped. A microphone would improve commentary, especially with engine noise and people spread around the boat.

Marathonisi: A Protected Island and One Hour on the Beach

Marathonisi is a green, uninhabited island within the National Marine Park. The captain takes the boat toward two impressive caves, where sunlight reaches the water and colors the rock in shifting blue tones. Then the boat moves to the other side of the island for a one-hour stop on a small golden beach.

This is the main swim and relaxation stop. You can swim, snorkel, or sit in the sun. Floating canteens sell snacks and refreshments, and you may bring your own food. The beach is clean and attractive, but it is small and can fill quickly with people from other boats.

The island is also a nesting area for loggerhead turtles. Roped sections mark protected places, and you need to stay outside them. Seeing the nesting areas adds meaning to the stop, but it also means this is not a free-for-all beach day. Respect the barriers and leave the sand as you found it.

You should wear your swimsuit under your clothes. Depending on the boat and conditions, getting on or off may leave you wet. Bring a towel, sunscreen, and snorkeling gear, because none of those items are included.

A practical point matters here: the schedule can be confusing if people wander to another part of the island or are slow returning to the boat. Delays at this stop can reduce time later, particularly if the tour has already started late.

Keri Caves and the Best Swim of the Day

The Keri Caves are carved into the southwestern coast of Zakynthos. From the boat, you pass white beaches, rock arches, forested hills, and tall limestone cliffs dropping into the sea. The captain steers the glass-bottom boat into small caves and, when conditions allow, through the Kamara rock arch.

For many people, this is the strongest part of the outing. The caves are close, dramatic, and best seen from water level. Several people singled out the skill of the captain, especially when guiding the boat deep into narrow openings.

The tour allows about 20 minutes to swim just outside the entrance of a large cave. The water is described as crystal clear, and this is a good place to use snorkeling equipment. You can also stay on the boat and enjoy the view if you do not want to swim.

You need to take the swim stop seriously. Currents can be present near the arch and cave entrance, and the supplied information does not promise swim aids or individual swimming checks. If you are not a confident swimmer, remain close to the boat or skip the water. Parents should keep a close eye on children.

Weather affects this section. Rough seas may change the route, reduce swimming time, or force a different schedule. The tour requires good weather, and poor conditions can lead to a new date or a refund.

Aristeon Olive Press: A Short Taste of Zakynthos

After returning to port, the van takes you to Aristeon Ecological Olive Press. Olive oil is central to Greek food and rural life, and this stop gives you a look at how production changed over time.

The outdoor museum includes old wooden equipment, early methods, a later stone mill, and modern factory machinery. A guide explains the basic process, from harvesting olives to producing oil. You also get a free tasting of local olives, village bread, and several extra virgin oils, likely including lemon, orange, and garlic flavors.

The tasting is a pleasant finish after several hours on the water. It is also one of the few parts of the outing that feels clearly tied to everyday Zakynthos rather than to a standard coastal sightseeing route.

Do not expect a long museum visit. The stop lasts about 30 minutes, and the explanation may be brief. Some people enjoyed the factory and tasting, while others found the presentation rushed and noticed that oil is offered for sale afterward. I would treat it as a useful introduction and tasting, not a full food tour.

What $67.28 Really Buys You

At $67.28 per person, the cost covers hotel pickup within the free radius, return transport, the shared boat, Marathonisi, the National Marine Park cruise, the olive press visit, insurance, and olive oil tasting. That is fair value if you want to see several southern sights without arranging a van, port transfer, and boat independently.

The Mercedes-Benz van is a real convenience. Zakynthos is spread out, and a driver who knows the pickup points saves you the trouble of organizing transport between the coast and the olive press.

The tradeoff is control. You cannot set the length of each stop, avoid busy beaches, or choose a quieter turtle-watching route. Delays from late arrivals can also affect your time at Cameo Island or the caves.

Food is not included. Bring snacks, particularly if you are arriving from a cruise ship or expect a delay. There is no restaurant meal included in this five-hour version, although refreshments may be available from floating canteens at Marathonisi.

Who Will Enjoy This Half-Day Outing?

I would recommend it to you if you want a broad introduction to southern Zakynthos in one morning or afternoon. It suits people who enjoy boat scenery, short swims, simple photo stops, and a little local food culture at the end.

It is also useful if you do not have a rental car, are staying away from the main port, or have a cruise stop and need transport arranged around the ship’s schedule. Families can enjoy the variety, though parents should plan carefully for heat, swimming ability, and the lack of toilets for much of the day.

I would hesitate if you want quiet nature viewing or a serious wildlife experience. The shared boat may feel crowded, and turtle sightings can involve several boats gathered in one area. I would also reconsider if you need long, unhurried stops or have concerns about swimming in open water without clearly provided flotation equipment.

Bring:

• Swimsuit worn under your clothes
• Towel
• Sunscreen
• Water and snacks
• Snorkeling equipment
• Cash for the €5 Cameo Island entrance and possible refreshments

The operator provides full insurance and bottled water, but the water may be in the van rather than on the boat. Ask your driver before leaving if you want to refill or take a bottle with you.

Should You Book the Marathonisi and Keri Caves Tour?

Book it if your priority is convenience and variety. In five hours, you see Cameo Island, cruise through turtle waters, visit Marathonisi, enter the Keri Caves, swim, and taste local olive oil. Friendly staff such as George and Christos can make the day feel personal, and the cave route is a strong reason to go.

Skip it if you dislike crowds, waiting, or fixed schedules. The experience can lose time when people arrive late, Cameo Island and Marathonisi can be crowded, and turtle watching may feel uncomfortable rather than magical.

My advice is to book this as a scenic southern-coast sampler, not as a guaranteed turtle encounter or a relaxed beach day. Go prepared for sun, wet clothes, shared space, and changing conditions, and the $67.28 price can make good sense.

FAQ

How long does the Zakynthos tour last?

The tour lasts approximately five hours.

How much does the tour cost?

The listed price is $67.28 per person.

Is hotel pickup available?

Yes. Free pickup is available within 10 kilometers of Dali Tours’ office at Lomvardou 20 in Zakynthos Town. Pickup and return for accommodations farther away, up to about 20 kilometers, costs €25 per booking.

Is Cameo Island entry included?

No. Entry costs an additional €5 per person.

Is the boat ticket to Marathonisi included?

Yes. The boat ticket to Marathonisi is included.

Are turtles guaranteed?

No. The captain and crew look for turtles, but sightings cannot be guaranteed.

Is food included?

No. Food and drinks are not included. Floating canteens sell snacks and refreshments on Marathonisi, and you may bring your own food.

Are towels and snorkeling equipment provided?

No. You need to bring your own towel, sunscreen, and snorkeling equipment.

Are there toilets during the boat portion of the tour?

There are no toilets on the boat or on Marathonisi Island. The group stops for a toilet break before boarding the boat.

What language is used on the tour?

The tour operates in spoken English. Written information in other languages may be requested from the operator.

What happens if bad weather cancels the tour?

If poor weather causes cancellation, you will be offered another date or a full refund.

Can I cancel for a full refund?

Yes. You must cancel at least 24 hours before the experience start time for a full refund.