Zakynthos: Marathonisi, Cameo Island and Keri Caves Tour

The main draw here is simple: you get Zakynthos by road, boat, beach, and cave in one half-day. You may spot a Caretta Caretta turtle from the glass-bottom boat, then swim at Marathonisi and near the Keri Caves, two of the island’s best-known coastal stops.

I like the mix of clear-water swimming and local food culture. I also like the chance to visit Cameo Island’s photogenic wooden bridge before taking a boat along the National Marine Park. The main catch is time: five hours goes quickly, and the boat can feel crowded when it reaches full capacity.

• Cameo Island bridge: Pay about €5 to enter the tiny island, swim, and take photos.
• Glass-bottom boat: Watch for Caretta Caretta turtles without entering their protected waters.
• Marathonisi beach: Spend about an hour swimming, snorkeling, and relaxing on soft sand.
• Keri Caves: Cruise past white beaches, rock arches, and limestone cliffs, then swim outside a cave.
• Aristeon olive oil stop: Taste lemon, orange, and garlic-flavored extra virgin olive oils with olives and bread.
• Practical limit: There are no toilets on the boat or Marathonisi, and snorkeling gear is not supplied.

A five-hour sampler of southern Zakynthos

This tour works best as a compact introduction to the southern coast. You start with a minibus pickup, move to the water at Agios Sostis, spend much of the day on a boat, then finish with a short olive oil visit in Lithakia.

That variety is the value. Instead of arranging separate transport to the port, finding a boat, and visiting an olive press on your own, you get the main pieces bundled together for $66 per person. You also receive bottled water, a map, the boat ticket to Marathonisi, and an olive oil tasting.

You should not expect a slow, private cruise. This is a shared group outing, and the boat may carry up to about 24 people. Some departures use a smaller boat that feels cramped when full. The road transfers can also involve waiting while people switch between vans and boats.

The general mood is easygoing and outdoorsy. Guides including George, Sakis, Nicholas, Ilias, and Dimitris have been praised for being friendly and helpful, though the amount of commentary can vary. Some departures have had a full guide talk, while others have felt more like transport with a driver.

Pickup from Zakynthos resorts

Pickup is available from a range of places, including Laganas, Kalamaki, Zakynthos Town, Lithakia, Argassi, Planos, Vanato, Kipseli, and Ano Vasilikos. Pickup and drop-off are included within 10 kilometers of the operator’s office on Lomvardou 20 in Zakynthos Town.

You’ll normally wait outside your hotel about 30 minutes before the stated start time. Look for a Dali Tours sign on the van. If you have your own transport, you can meet at the office 10 minutes before departure.

Cruise passengers can also be collected from the cruise terminal, with the schedule adjusted to fit the ship’s timing. That is a useful feature, but tell the operator your ship schedule clearly. One well-timed departure returned people to their tender boat with time to spare.

The vehicle is usually an air-conditioned minibus. It may be a nine-seater, and some rides have felt tight. Pickup can also take longer than expected when several hotels and groups are involved, so do not plan another fixed activity immediately afterward.

Cameo Island and the bridge at Agios Sostis

The first coastal stop is Cameo Island, reached from the port area by its famous wooden bridge. The bridge itself is one of the tour’s best photo spots. From here, you get a quick view over the bright water and the small, rocky island.

You generally have about 30 minutes for the visit. That is enough to cross the bridge, take photos, and possibly swim, but not enough for an unhurried beach session. If you want a long stay, return on your own another day.

Entry is listed at €5 per person. The exact charge has varied on some departures, but you should carry the money and assume you will need to pay. Cash is wise because the tour specifically advises bringing it, and the later floating canteens also require spending money.

Cameo is a small place, not a full island day. Its value comes from the setting and bridge rather than from a long list of sights. I would enter if you enjoy photos and a quick swim. If you dislike extra fees or prefer more time in the water, you can treat this as a photo stop and save the island for another visit.

Watching for turtles from the glass-bottom boat

From Agios Sostis, you board a glass-bottom boat for the marine portion of the trip. The glass panel is useful for looking into the water, but do not picture a boat made mostly of glass. On a full boat, your view may depend on where you sit.

The aim is to spot Caretta Caretta loggerhead turtles in the National Marine Park of Zakynthos. The crew watches for them and pauses when one appears. You might see a turtle almost immediately, or you might see none, especially late in the season. This is wildlife viewing, not a guaranteed encounter.

That distinction matters. In October, some departures have had no turtle sightings. In summer, people have sometimes seen one, two, or even three. The boat may stay near a turtle for a while so everyone gets a chance, but you should not expect to swim with these protected animals.

The best practice is to watch quietly and let the crew control the approach. The turtles use this part of Zakynthos for feeding and nesting, so the point is to see them without adding pressure. The experience is brief when the animal surfaces, but it can be one of the day’s most memorable moments.

Some boat crews give plenty of information, while others provide little explanation about the turtles or caves. If natural history is important to you, ask questions when the crew is available. Guides such as George have been especially appreciated for explaining the island during the road sections.

Marathonisi: one hour on Turtle Island

Marathonisi is a green, turtle-shaped island in the National Marine Park. The boat ticket is included, and you usually get about an hour on or near its sandy beach.

This is the most relaxed part of the outing. You can lie on the white sand, swim in warm water, or snorkel along the shore. The water is often remarkably clear, which makes even a short swim worthwhile. Bring your own mask and snorkel if you have them, since equipment is not included.

Do not assume the island’s name means turtles will be waiting at the beach. The nesting areas are protected, and turtles may be elsewhere. Follow any barriers and do not walk into closed nesting zones. Protecting the beach matters more than getting a closer photo.

Floating canteens are moored near the beach, selling snacks, refreshments, ice cream, and drinks. Bring cash, as several people have been caught without money during this stop. You can also bring your own food, though the tour does not include a meal.

There are no toilets on Marathonisi. Use the toilet before boarding the boat, because once you leave the port you may have no proper facility until you return. Wear your swimsuit under your clothes and pack a change of clothing.

I wish the schedule gave this stop longer. One hour lets you enjoy the beach, but it disappears quickly once you walk from the boat, find a place for your things, swim, and return. If beach time is your top priority, an independent boat trip may suit you better.

The Keri Caves by boat

After Marathonisi, the boat follows the southern coast toward the Keri Caves. This section is about scenery more than exploration on foot. You pass white beaches, forested hills, rock arches, and tall limestone cliffs dropping into the Ionian Sea.

The boat passes through the Kamara rock arch, a striking natural opening in the coast. The captain may steer close to the cliffs, giving you a good view of the stone shapes and water below. On a sunny day, the contrast between the pale rock and clear sea makes this one of the strongest photo sections.

You then stop for about 20 minutes outside the entrance to a large cave. This is a swim stop, not a cave walk. You can jump or climb into the water, depending on the boat setup, and snorkel if you bring your own equipment.

The swim is a fine way to break up the sightseeing, but the stop is short. Some boats have moved quickly and splashed passengers with spray, which can be refreshing in July and less welcome in October. Keep your camera and phone protected, and bring a dry change of clothes.

The caves themselves are attractive, but the tour does not turn them into a long geology lesson. If you want detailed explanations at every coastal feature, your experience may depend on the particular captain and guide. The boat ride remains the main pleasure: open water, cliffs, arches, and a chance to swim in a quiet-looking stretch of sea.

Aristeon Olive Oil Press in Lithakia

After returning to the port, you board the minibus for the final stop at the Aristeon ecological olive oil press museum. The visit lasts around 30 minutes and adds a useful local layer to a day otherwise centered on beaches and wildlife.

You learn how olive oil has been produced on Zakynthos and see the cultural importance of olives to the island. The tasting includes bread, olives, and flavored extra virgin oils, commonly lemon, orange, and garlic.

I like this stop because it gives you something concrete to take home besides beach photos. You can taste the differences between the oils and browse local products, including olive-based beauty items. It is also a welcome change from the sun and boat.

Keep your expectations in check. This is a short presentation and tasting, not a large museum visit. Some people find the talk informative, while others find it too focused on selling products. If your only goal is turtle spotting, you may prefer another swim stop. If you want a taste of Zakynthos beyond the coast, the visit earns its place.

What $66 gets you

At $66, the tour is fairly priced for a five-hour package that includes hotel pickup within the stated area, transport to the port, the boat ticket, bottled water, the Marathonisi visit, the caves, and olive oil tasting. You are paying for convenience as much as for admission.

The value is strongest if you do not have a car, are staying in one of the listed resort areas, or want to combine several southern Zakynthos sights in one morning or afternoon. Cruise passengers also gain a practical way to see the coast without arranging separate transport.

The value is weaker if you want a quiet boat, long beach stops, or a detailed marine guide. The shared boat can feel crowded, and some people have found the actual activity shorter than the advertised five hours once transfers and waiting are counted.

Cameo’s possible €5 entry fee is extra. Food, drinks, towels, and snorkeling equipment are also extra. Add those costs before comparing this with a private boat or a longer cruise.

What to pack and how to stay comfortable

Wear your swimsuit under your clothes. There are two likely swimming opportunities, and changing on a boat or beach is not convenient.

Pack:

• Towel and a dry change of clothes
• Sun hat, sunglasses, and strong sunscreen
• Flip-flops or secure beach footwear
• Camera or phone protection for spray
• Snorkeling equipment if you own it
• Cash for Cameo Island, snacks, and floating canteens

The operator provides bottled water and a map, but not towels or snorkeling gear. There are no toilets on the boat or Marathonisi, so use facilities before boarding.

The tour is not suitable for wheelchair users or people with mobility impairments. You need to manage the minibus, port, boat, bridge, beach, and swimming stops. A full boat can also mean limited room to move around.

Who will enjoy this tour most

I would choose this for a first visit to Zakynthos when I want a broad taste of the island’s southern coast without spending a whole day at sea. Families with older children, couples, cruise passengers, and anyone staying around Laganas or Kalamaki should find the format practical.

It also suits you if you want several different experiences in one booking: a famous bridge, turtle watching, a sandy beach, coastal caves, swimming, and olive oil tasting.

I would hesitate if you dislike group transport, need lots of personal space, or want a serious wildlife excursion. Turtle sightings are never certain, and the boat’s glass panel is modest. The route can also feel rushed if you want to linger at Marathonisi or Cameo.

Weather matters. Boat trips may be changed after poor conditions, and the schedule can shift. A flexible booking is useful, with free cancellation up to 24 hours before departure and a reserve now, pay later option.

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

Book it if you want a well-packed half-day and understand that it is a sampler, not a private cruise. The strongest parts are the clear water at Marathonisi, the Keri coastline, the chance of seeing Caretta Caretta turtles, and the ease of having transport arranged.

Budget for the €5 Cameo entry, bring cash and snorkeling gear, and use the toilet before boarding. If you are lucky with the wildlife and have a friendly guide such as George, Sakis, or Nicholas, the tour can deliver a lot for $66.

Skip it in favor of a longer or smaller boat trip if your priority is unhurried beach time, quiet wildlife watching, or detailed commentary. For most visitors who want several Zakynthos highlights in five hours, though, this is a sensible and enjoyable choice.

FAQ

How long does the Zakynthos tour last?

The stated duration is five hours, including minibus transfers, the boat trip, island stops, and the olive oil visit.

What is included in the price?

The price includes pickup and drop-off within the stated service area, bottled water, a map, the boat ticket to Marathonisi, entry to the Aristeon Olive Oil Press Museum, and olive oil tasting.

Is Cameo Island entry included?

No. Cameo Island entry is listed as an extra €5 per person. The exact charge can vary by arrangement, so bring cash and budget for it.

Will I definitely see Caretta Caretta turtles?

No. The crew looks for turtles from the glass-bottom boat, but sightings are not guaranteed. Some departures see several, while late-season trips may see none.

Can I swim at Marathonisi?

Yes. You usually have about one hour at Marathonisi for swimming, snorkeling, and relaxing on the sandy beach.

Are snorkeling equipment and towels provided?

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

Are there toilets during the boat trip?

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

Where does pickup take place?

Pickup is available from listed areas including Laganas, Kalamaki, Zakynthos Town, Lithakia, Argassi, Planos, Vanato, Kipseli, and Ano Vasilikos, within 10 kilometers of the provider’s office. Cruise terminal pickup is also available when arranged around the ship schedule.