
Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves
Traveler rating
4.4/5
Based on 100 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves worth booking?
Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves is a 3-hour experience in Zakynthos, Greece, from $34 per person. It scores 73 out of 100 on the Outty Ranking, which we label “Strongly Recommended”, based on a 4.4/5 rating across 100 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 73 / 100
- Rating
- 4.4/5 (100)
- Duration
- 3 hours
- From
- $34 per person
Set sail on a mesmerising journey across Zakynthos’ turquoise waters aboard our glass-bottom boat — a unique window into the island’s vibrant marine life. Whether you join us from the charming Agios Sostis Harbour or opt for a hassle-free pickup from your hotel you’re in for a day packed with natural wonders and unforgettable experiences. Cruise the sparkling Ionian Sea on a glass-bottom boat and discover Zakynthos’ natural wonders. Spot sea turtles, swim in crystal-clear waters, and explore the stunning, Keri Caves. Choose a convenient meeting point or hotel pickup from major resorts. Enjoy incredible views above and below the waves, and don’t forget your camera — and snorkel! Highlights: • Watch for loggerhead turtles in their natural habitat • Swim in the turquoise waters of Turtle Island & Keri Caves • Marvel at marine life through the boat’s glass bottom • Capture amazing photos of Zakynthos’ coastline Perfect for couples, families, solo and nature lovers!
What you get
About this experience
Set sail on a mesmerising journey across Zakynthos’ turquoise waters aboard our glass-bottom boat — a unique window into the island’s vibrant marine life. Whether you join us from the charming Agios Sostis Harbour or opt for a hassle-free pickup from your hotel you’re in for a day packed with natural wonders and unforgettable experiences. Cruise the sparkling Ionian Sea on a glass-bottom boat and discover Zakynthos’ natural wonders. Spot sea turtles, swim in crystal-clear waters, and explore the stunning, Keri Caves. Choose a convenient meeting point or hotel pickup from major resorts. Enjoy incredible views above and below the waves, and don’t forget your camera — and snorkel! Highlights: • Watch for loggerhead turtles in their natural habitat • Swim in the turquoise waters of Turtle Island & Keri Caves • Marvel at marine life through the boat’s glass bottom • Capture amazing photos of Zakynthos’ coastline Perfect for couples, families, solo and nature lovers!
What's included
Included
- Bottled water
- In-vehicle air conditioning
- Liability Insurance
- Glass-Bottom Boat Ticket
- Guide/Captain
Not included
- Snacks
What you'll see and do
Laganas
Our specially designed glass-bottom boat gives you a clear view of the marine life and sea floor, letting you connect with nature even if you stay dry.
15 minutes here
Keri Caves
Cruise along dramatic limestone cliffs and slip into a dreamscape of electric blue water at the breathtaking Keri Caves. These hidden gems are only accessible by boat, making the experience feel like your own private paradise.
60 minutes here
Marathonisi
Island): Glide over the Ionian Sea to the heart-shaped Marathonisi Island — famed for its pristine beaches and as a nesting ground for the endangered Caretta caretta sea turtles. Catch sight of these gentle creatures from the deck, or jump in for a swim alongside them if you’re lucky!
60 minutes here
Cameo Island
Cameo Island, nestled near Agios Sostis in Zakynthos, Greece, is a picturesque private island renowned for its romantic ambiance, making it a sought-after destination for weddings. Originally part of the mainland, it became an island following an earthquake and is now connected by a charming wooden footbridge.
15 minutes here
Where it starts and ends
Meeting point
Zakynthos
Once you reach the small Chapel of Agios Sostis, walk straight for about 20 meters, keeping the chapel on your right. You will find our meeting point ahead. Please wait at the Greek flag, where you’ll see the sign for "Happy Days Zante – Meeting Point."
Hotel pickup
Pickup is available for selected locations. Pickup begins about 10 minutes before departure.
Ends at
Once you reach the small Chapel of Agios Sostis, walk straight for about 20 meters, keeping the chapel on your right. You will find our meeting point ahead. Please wait at the Greek flag, where you’ll see the sign for "Happy Days Zante – Meeting Point."
Options you can book
St. Sostis port meeting point.
No transfer included : Select this option and drive by your own at the meeting point.
OPTION WITH HOTEL TRANSFER
Half-Day Tour with Pickup : Select this option for inclusive round trip transportation from your accommodation to the port. Pickup included
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- en
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 30 travelers per booking
- Operated by
- Happy Days Zante
Know before you go
- Service animals allowed
- Infants are required to sit on an adult’s lap
- Suitable for all physical fitness levels
Photos




What travelers are saying
Outty’s summary of the themes that recur across 100 traveler reviews. Written by us, not quoted from reviewers.
Value for money
2 mentionsTravelers feel they got more than they paid for.
Food and drink
2 mentionsThe tastings and food stops are a highlight for most reviewers.
Traveler reviews
100 verified traveler reviews for Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves. Ratings and reviews provided by Viator and Tripadvisor.
Excellent value for money day out
Trip Advisor trip via Viator and Happy Days Zante. Our trip yesterday was cancelled at the last minute due to a thunderstorm which we expected. However, got in the trip today (the next day at the same time) having been offered a refund if we were not available. Paid £39.33 each which included pick up from Argasi so around £12 each for the return fare which was great value for money. Trip itself was excellent. Seen a turtle as soon as we left the harbour area and then off to see loads of caves as well as swimming in the sea. Then back on the boat for a further journey to a beach which was lovely. Snack bar area (good value too €6 for a Heineken). Also sold burgers and sandwiches which were also reasonable. Lovely area to swim as went quite swept very quickly and beautiful clear water. The guys and girls with the snorkels were enjoying themselves. Had an hour here (15 mins on previous swimming area). Then back on the boat for a return journey. All in all, let’s call it £40 for nearly 5 hrs of fun including the 50 mins each way air conditioned bus on the way to the meeting point and back. Great value for money and something different. Thank you Happy Days Zante. PS Thanks to Violet and Irene for keeping us promptly all up to date with the rescheduled trip due to the thunderstorm .
via Tripadvisor
Nice afternoon boat trip
There was good communication and everything ran to time. We saw two turtles and had an enjoyable afternoon
via Viator
The team was amazing from...
The team was amazing from transportation to our captain on our boat. He made sure we saw these one turtle.
via Viator
Perfect Half-Day Trip!
Great trip overall, the captain and crew on board were informative and Captain knew exactly where to find the turtles! Got to do and see a lot even though the tour was only half a day.
via Viator
Birthday treat
Absolutely amazing experience for my birthday.
via Tripadvisor
Good to know
- Duration
- 3 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Every day
- Price range
- $34 to $45
- Hotel pickup
- Available for selected locations
- Booked in 30 days
- 35
- Verdict
- Strongly Recommended
Who runs this experience
Operated by Happy Days Zante, who run 5 experiences we rank across 1 city, with an average Outty Ranking of 65.2.
See everything Happy Days Zante runsWhy this scores 73
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Zakynthos.
How much does Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves cost?
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Prices start at $34 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Zakynthos usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves take?
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Plan for about 3 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Zakynthos is not rushed.
Is Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves worth it?
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It holds an Outty Ranking of 73 out of 100, which we label "Strongly Recommended". That score blends traveler sentiment (4.4/5 across 100 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Zakynthos, and how flexible the cancellation terms are.
Can I cancel or reschedule Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves?
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Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 3-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves?
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Around 35 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Zakynthos can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
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Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Zakynthos and add a light layer if any part of the 3-hour experience runs outdoors or after sunset.
Where does Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves start and how do I get there?
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The exact meeting point and directions are on your voucher once you book, and they sit in central Zakynthos within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Zakynthos?
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On Outty we rank every Zakynthos experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Ceramic Making Experience in Zakynthos, Half-Day Greek Cooking Class of Zakynthian Culture with Lunch, Zakynthos Turtle Tour Small Group Turtle Spotting & Turtle Island. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Zakynthos?
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Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Zakynthos?
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Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
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Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
What is included in Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves?
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Included: Bottled water; In-vehicle air conditioning; Liability Insurance; Glass-Bottom Boat Ticket; and Guide/Captain. Not included: Snacks. Always check the voucher for the final list before you travel.
Does Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves include hotel pickup?
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Yes, pickup is offered, or you can meet at the start point instead from 94 listed pickup locations in and around Zakynthos. Be ready about 10 minutes before the start time. You can also enter a custom pickup address when booking.
What languages is Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves offered in?
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It runs in English. Pick your language when choosing a date and time, as not every departure runs in every language.
Will I get instant confirmation and a mobile ticket for Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves?
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Confirmation is sent by the operator after booking, usually within 48 hours; if it is not confirmed you are not charged. Mobile tickets are accepted, so you can show the voucher on your phone.
Is Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves wheelchair or stroller accessible?
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The operator notes: Infants are required to sit on an adult’s lap. If accessibility is critical, contact the operator after booking to confirm arrangements for your date.
What happens to Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves if the weather is bad?
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This experience depends on good weather. If it is canceled because of poor weather, you are offered a different date or a full refund.
What do travelers say about Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves?
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Across 100 reviews averaging 4.4 out of 5, recurring themes include value for money, food and drink. Travelers feel they got more than they paid for.
What booking options are available for Zakynthos Half Day Tour and Cruise Turtle Island and Keri Caves?
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There are 2 options to choose from, including St. Sostis port meeting point., OPTION WITH HOTEL TRANSFER. Prices and start times differ by option, so compare them on the booking screen.
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