REVIEW · ZAKYNTHOS
Zakynthos: Marathonisi, Cameo Island and Keri Caves Tour
Book on Viator →Operated by Dali Tours Zakynthos · Bookable on Viator
South Zakynthos hits fast, with saltwater and caves. I like how this trip strings together the island’s big sights into one smooth loop, and I’m especially into the glass-bottom boat view time and the Marathonisi swim. The main catch to keep in mind is that turtle spotting and the exact pace can vary with sea conditions and cruise timing.
The day starts with pickup from your hotel or, if you’re near town, from the Dali Tours office, and you’ll even get a free map of Zakynthos to help you connect the dots for the rest of your stay. On past departures, the vibe has been friendly and local, with names like George showing up as a guide-driver, and you may also hear the tour narrated by other staff such as Christos or Isabel.
At about 5 hours and roughly $67.28 per person, it’s a solid value if you want a lot of scenery without planning routes. One thing to plan around: Cameo Island can cost extra to enter, and food is not included, so bring or buy snacks if you get hungry.
In This Review
- Key Things to Know Before You Go
- A Half-Day Route That Packs Zakynthos South
- Getting There: Mercedes-Benz Pickup and a Map Start
- Cameo Island: The Wedding Island Beach and the 5€ Decision
- National Marine Park + Glass-Bottom Boat: Turtle Watching From the Bay
- Marathonisi: Caves, Protected Nests, and a One-Hour Swim Window
- What to bring (or plan for) here
- Keri Caves and Kamara Arch: Short Swim, Big Cliff Views
- A sensible safety thought
- Aristeon Ecological Olive Oil Press: Tasting the Real Stuff
- Price and Value: What You Get for About $67
- Timing, Crowd Reality, and Why Some Days Feel Different
- Packing Checklist for a Caves and Swim Day
- Should You Book This Zakynthos South Tour?
- FAQ
- How long is the Zakynthos Marathonisi, Cameo Island and Keri Caves tour?
- What is the pickup situation for hotels on Zakynthos?
- Where does the tour start and end?
- Is the tour in English?
- Is bottled water included?
- Is Cameo Island admission included?
- Are there toilets on the boat or at Marathonisi Island?
- What’s included on Marathonisi?
- What should I bring for snorkeling and swimming?
- What food is included during the tour?
- What is the cancellation policy?
Key Things to Know Before You Go

- A half-day south loop: Cameo Island, Marathonisi, Keri Caves, and Aristeon olive-oil tasting in one ride
- Glass-bottom boat time for bay views and marine-life spotting, plus cave passages
- Cameo Island optional fee: a 5€ entrance charge if you want to step inside
- Marathonisi is a protected nesting area with roped zones you should respect
- Keri Caves include a short swim window near the cave entrance outside the arch
- Olive oil + tasting included at Aristeon Ecological Olive Oil Press, with olives and village bread
A Half-Day Route That Packs Zakynthos South

This tour is built for people who want a “greatest hits” sweep of southern Zakynthos without renting a car or mapping out bus connections. You’ll bounce between viewpoints and water stops, so your day feels active, but it still lands back at your starting point in time to enjoy the rest of the island later.
The pacing is the key. You’re not spending all day on one beach. Instead, you get a mix: a wedding-island beach, a turtle-focused marine-park cruise with a glass-bottom boat, a protected-nature island swim stop, and cave sailing along the cliffs at Keri. It’s a good match for short trips and for cruise passengers who need to make time windows work.
The other big theme here is water time. You’ll be changing environments often—van to port, port to boat, boat to cave swim zone, then back for the olive-oil stop. If you like variety, this format makes sense.
You can also read our reviews of more tours and experiences in Zakynthos.
Getting There: Mercedes-Benz Pickup and a Map Start

Pickup is offered across the island, with free pickup radius up to 10 km from the office in Zakynthos town (Lomvardou 20). If you’re outside that range but still within about 20 km, there’s an extra 25€ charge in total (covering pickup and drop-off). If you’re further than that, you’ll need to contact the operator to arrange a shuttle or plan to meet at the office.
Once you’re on board, you start with a local guide-driver briefing and a free map of Zakynthos. That small touch matters more than you’d think. It helps you understand what you’re seeing today and where it fits on the bigger picture, especially if you plan to drive or take another excursion later.
Transport is also part of the value equation here. Round-trip transit in a Mercedes-Benz makes the travel segment feel more comfortable than the usual “hop on, hop off” chaos people fear on island tours. Bottled water is included, and you’ll want it.
Cameo Island: The Wedding Island Beach and the 5€ Decision
Cameo Island sits just off the coast of Agios Sostis in the south of Zakynthos, and it’s known for a classic photo setup: steep white limestone around the water, a wooden bridge entrance, and the famous waving white sheets used as a wedding ceremony backdrop.
Your stop includes a swim option at a secluded beach and plenty of photo angles. There’s also an extra 5€ entrance fee if you want to actually enter the island area. If your goal is just to admire it from the right places and you don’t care about stepping onto the wedding-ceremony grounds, you might choose to skip that charge.
The practical advice: if you do pay, treat it like a short, timed beach visit. This kind of spot can get busy, and you’ll enjoy it most if you arrive with a plan for photos first, then swim.
National Marine Park + Glass-Bottom Boat: Turtle Watching From the Bay

After Cameo Island, you return on foot toward the port where the glass-bottom boat waits. This is your marine-park mini-cruise segment, designed to put you out on the bay with a better viewing angle than you’d get from a regular deck-only boat.
You’ll be looking for turtles, and the captain’s approach matters. There’s a built-in “watch the surface” rhythm: you’ll be informed when turtles are likely to surface to breathe, and when they pass under the glass bottom. That’s the main reason this portion works well for many people—it turns waiting into something structured.
One realistic note: turtles aren’t predictable. Even on the best day, sightings can be quick, and sometimes you may spot them only briefly or not at all. If you’re coming for turtles as your top priority, go in with flexible expectations, and don’t assume every departure will deliver long views.
Marathonisi: Caves, Protected Nests, and a One-Hour Swim Window

Marathonisi is the green island many people connect with Zakynthos marine life. It’s part of the National Marine Park, and it’s also about protection and behavior rules, not just photos.
You’ll board the boat and the captain drives inside two impressive caves, where sunlight floods in and colors the rock tones. Then the boat heads toward the other side of the island for about a one-hour stop at a small golden sand beach. That’s your chance to swim, snorkel, or simply relax in the sun.
This stop also includes moving context: you can see protected nesting areas. The nests are roped for their safety, and you’ll want to respect those regulations. It’s one of the few places on the island where you’ll feel like the goal is conservation, not only scenery.
What to bring (or plan for) here
- There are floating canteens on Marathonisi where you can buy snacks and refreshments, but food isn’t included on the tour.
- There are no toilets on the boat or on Marathonisi Island. You’ll stop for the restroom before you board the boat, so use that moment.
- Towels and snorkeling gear aren’t included. If you want to snorkel, bring your own equipment or plan to just swim and observe without it.
Keri Caves and Kamara Arch: Short Swim, Big Cliff Views

Keri Caves are on the southwestern side of Zakynthos, and the coastline here is all limestone cliffs, arches, and time-carved rock shapes. From the boat, you’ll cruise along the coast and get wide views of white beaches, rock arches, and forested hills.
The captain’s skill is a major part of this segment. You’ll pass through smaller caves using the glass-bottom boat, and you’ll also go through the famous rock arch called Kamara. It’s the kind of moment where you feel the sea and the cliff are in conversation—rocks shape the water path, and the boat shows you the shape.
You’ll have about 20 minutes to swim just outside the entrance of a large cave. This is a quick hit, not a long beach session. Bring snorkeling equipment if you want to look under the clear water, but if you’re not a snorkeler, you can still enjoy the scenery from the boat.
A sensible safety thought
Swim conditions can be demanding at cave entrances because of water movement. Swim aids or life jackets are not listed as included. If you’re a cautious swimmer or you have a limited comfort zone in open water, consider bringing your own flotation aid.
Aristeon Ecological Olive Oil Press: Tasting the Real Stuff

After your sea and swim time, you’ll transfer to the Aristeon Ecological Olive Oil Press. This stop is shorter and calmer compared with the boat segments, but it’s still interesting because it connects the island’s daily life to what you see around you.
You’ll walk through an outdoor olive oil museum that explains how olive oil making worked over the centuries—old-school methods and older wooden equipment, then later machinery like a stone mill, and then the modern factory side. The guide also helps you understand why the extra virgin oil produced here is considered special for health and quality traits.
The tasting is included. You’ll get free local olives and traditional village bread with different extra virgin olive oil flavors, most likely lemon, orange, and garlic. If you want something more meaningful than just a quick souvenir stop, this is the part of the tour that delivers a taste of Greek life.
It’s worth planning your appetite here, especially if you skipped lunch earlier. Food is not included elsewhere on the tour, and this is one of the few clear chances to eat something free.
Price and Value: What You Get for About $67

For around $67.28 per person, you’re paying for a lot of logistics: round-trip transport (with pickup), marine transport, and an included cultural stop. Key inclusions are the boat ticket to Marathonisi, the National Marine Park glass-bottom mini-cruise, bottled water, full insurance, and admission to the Aristeon olive press with olive tasting.
What’s not included matters. You’ll handle your own:
- towels, sunscreen, and snorkeling equipment
- food or drinks (though you can buy snacks on Marathonisi at floating canteens)
- the Cameo Island 5€ entrance fee if you want to enter
So the value equation depends on your plans. If you’re the type who hates planning routes and just wants the highlights with minimal effort, this price starts to look fair fast. If you’re picky about turtle time, long beach lounging, or cave swims, you may wish you had more control through a private day or an open-ended itinerary.
Also keep in mind that the tour is weather-dependent. If conditions aren’t suitable, you’ll be offered a different date or a full refund.
Timing, Crowd Reality, and Why Some Days Feel Different
This tour runs about 5 hours. That’s tight by design, which means there’s less slack if the sea gets rough, or if cruise tenders affect the schedule. Pickup may involve waiting at the port for cruise ship timing, and the operator adjusts pickup and drop-off around the cruise schedule.
That schedule flexibility can create a real-world tradeoff: sometimes you may get less time at a stop if the day runs behind. Some departures can also feel crowded on boats—this is part of the shared-tour style and especially true near popular viewpoints.
My practical advice: if you’re sensitive to crowds, go early in your vacation and keep your expectations grounded. The scenery is real, but the experience can feel busier when lots of boats show up at the same marine spots.
Packing Checklist for a Caves and Swim Day
If you want this to feel easy instead of annoying, pack for water first and fashion second. The tour specifically asks you to wear your swimming suit under your clothes because you’ll have water interaction at multiple points.
Bring:
- a swim-ready outfit (and something dry you’ll tolerate changing into later)
- sunscreen (not included)
- snorkeling mask/fins if you plan to snorkel (not included)
- your own towel (not included)
And if you get hungry, plan snacks. Water is provided via bottled water, but food is not part of the tour package. On Marathonisi, you can buy refreshments at floating canteens.
Should You Book This Zakynthos South Tour?
Book it if you want a well-organized half day that links Cameo Island, Marathonisi, and Keri Caves into one practical route, with a guaranteed olive-oil tasting finish. It’s also a good pick if you don’t want to fight parking or navigation in southern Zakynthos.
Consider another plan if turtles are your only goal, because sightings can be brief or variable. Also think twice if you hate boat crowding or you need lots of bathroom access—there are no toilets on the boat or on Marathonisi Island, so you’re relying on the restroom stop before boarding.
If you’re okay with a fast-paced, sea-focused day and you can handle short swim windows, this tour is an efficient way to see why Zakynthos south is famous.
FAQ
How long is the Zakynthos Marathonisi, Cameo Island and Keri Caves tour?
It runs for about 5 hours.
What is the pickup situation for hotels on Zakynthos?
Pickup is offered throughout the island. The free pickup radius is up to 10 km from the office in Zakynthos town. For accommodations outside that radius and up to around 20 km, there is a 25€ total extra charge (pickup and drop-off included). If you are further out, you need to contact the provider.
Where does the tour start and end?
The start point is Dali Tours Zakynthos, Lomvardou 20, Zakynthos 291 00, Greece. The tour ends back at the meeting point.
Is the tour in English?
Yes, the tour operates in spoken English.
Is bottled water included?
Yes, bottled water is included.
Is Cameo Island admission included?
No. There is a 5€ entrance fee if you want to enter Cameo Island.
Are there toilets on the boat or at Marathonisi Island?
No. There are no toilets on the boat or on Marathonisi Island. There is a restroom stop before boarding the boat.
What’s included on Marathonisi?
The tour includes a boat ride to Marathonisi (and the associated cave navigation). You’ll have about a one-hour stop on Marathonisi with time for swimming, snorkeling, or sunbathing, and you’ll see protected nesting areas roped for safety.
What should I bring for snorkeling and swimming?
Towels, sunscreen, and snorkeling equipment are not included. You should bring your own if you want them.
What food is included during the tour?
Food or drinks are not included. There are floating canteens on Marathonisi Island where you can buy snacks and refreshments, and you can also bring your own.
What is the cancellation policy?
You can cancel for a full refund up to 24 hours in advance. The tour requires good weather, and if it is canceled due to poor weather, you’ll be offered a different date or a full refund.

















