
Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands
Traveler rating
4.8/5
Based on 32 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands worth booking?
Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands is a 3-hour experience in Zakynthos, Greece, from $69 per person. It scores 74 out of 100 on the Outty Ranking, which we label “Strongly Recommended”, based on a 4.8/5 rating across 32 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 74 / 100
- Rating
- 4.8/5 (32)
- Duration
- 3 hours
- From
- $69 per person
Embark on a 3-hour tour day tour (including sailing time), on a Glass Bottom Turtle Boat to Keri Caves & Islands. Watch the turtles in their natural habitat The National Marine Park of Zakynthos. Spot the turtles around Laganas Bay. The boat sets off from Agios Sostis port. After awhile you will have the chance to spot the turtles and sail very close to them for about half an hour. Swim at the amazing Marathonisi island see where the turtles nest their eggs, and swim at the breathtaking Keri caves with the bluest emerald waters and experience the underwater world. Have the opportunity to take photos of the turtles swimming in their natural habitat while enjoying the sun and the Mediterranean waters.
What you get
About this experience
Embark on a 3-hour tour day tour (including sailing time), on a Glass Bottom Turtle Boat to Keri Caves & Islands. Watch the turtles in their natural habitat The National Marine Park of Zakynthos. Spot the turtles around Laganas Bay. The boat sets off from Agios Sostis port. After awhile you will have the chance to spot the turtles and sail very close to them for about half an hour. Swim at the amazing Marathonisi island see where the turtles nest their eggs, and swim at the breathtaking Keri caves with the bluest emerald waters and experience the underwater world. Have the opportunity to take photos of the turtles swimming in their natural habitat while enjoying the sun and the Mediterranean waters.
What's included
Included
- Private transportation
Not included
- Snorkeling kit
- Toilet
What you'll see and do
Cameo Island
Cameo Island visit for photos. Take photos of the unique cameo island where the white sheets flow around the magical island
30 minutes here
Keri Caves
1st swim stop in Keri caves enjoy swimming inside the caves. Visit and swim in the crystal the Keri Caves and have a swim in the crystal waters.Bring your snorkling kit for an amazing experince of the underwater world
60 minutes here
Marathonisi
2nd swim stop at the private beach of the Turtle Island Marathonisi Island. You can swim, sunbathe and take pictures for 45-60 minutes.
60 minutes here
turtle spotting around laganas bay trying to spot the caretta caretta so our customers can take photo of it
30 minutes here
Where it starts and ends
Meeting point
Zakynthos
When you arrive at the port of Agios Sostis you will find the sign "BEST OF ZANTE" where you will find your boat there at the port . Towards the left side of the little church . Please arrive 30 minutes before departure time. There is parking around the port for you cars or motorbikes .
Hotel pickup
No pickup: everyone meets at the start point.
Ends at
When you arrive at the port of Agios Sostis you will find the sign "BEST OF ZANTE" where you will find your boat there at the port . Towards the left side of the little church . Please arrive 30 minutes before departure time. There is parking around the port for you cars or motorbikes .
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- el, en
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 30 travelers per booking
- Operated by
- Luxury Island Events
Know before you go
- Public transportation options are available nearby
- Not recommended for travelers with spinal injuries
- Not recommended for pregnant travelers
- Not recommended for travelers with poor cardiovascular health
- Suitable for all physical fitness levels
Photos






What travelers are saying
Outty’s summary of the themes that recur across 32 traveler reviews. Written by us, not quoted from reviewers.
The guide
3 mentionsTravelers single out the guide as the reason the experience works.
Knowledge and storytelling
3 mentionsReviewers describe the commentary as informative rather than scripted.
Value for money
2 mentionsTravelers feel they got more than they paid for.
Organization
2 mentionsPickup, timing, and logistics are described as running smoothly.
Traveler reviews
32 verified traveler reviews for Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands. Ratings and reviews provided by Viator and Tripadvisor.
Awesome boat tour
First thing I noticed is that this is NOT a glass bottom boat. When I bought this tour what I expected was a see through boat, this is not not that at all. It’s a boat for tours like many others. However, our captain was an awesome guy. Very informative, fun and super chill. He stopped at a lot of spots and gave us plenty of time to take pictures and swim. Would definitely recommend this tour because it was a great experience. I think that communication needs to be a little better on who to talk to and exactly where to meet. Otherwise, great experience overall
Response from the operator: Hello Orianna thank you for your feedback. We did speak together on WhatsApp before the trip and I had also sent you my WhatsApp number as there is a lot of boats in the port just in case people get confused. I also sent you photos of the church and the boat sign think it was very clear instructions. And I always have a direct connection with the customers before the trip and after the trip as we spoke several times together , anyhow glad you had a nice day ☺️ Thanks for the feedback the captain is one of the best and hope you had a lovely time Take care
via Tripadvisor
Brilliant and unforgetable.
Travel Memories travel agency - fantastic half day tour - picked up and dropped off at hotel. Driver of mini van and the captain on the boat both friendly, informative, and was a great day out. Good value too.
via Tripadvisor
Really enjoyable turtle trip with Captain Denny
Really enjoyable trip to Turtle Osland and Keri Caves with Denny - such an amazing and funny captain! Highly recommend this trip and booking with this company - I would highly recommend to anyone! Such lovely staff to book with and I wouldn’t hesitate to book another trip with them again next year! :)
via Tripadvisor
Good
Nice swimming spot, the beach they left us on was too crowded, but at least it was overcast with clouds. Still, had a nice swim.
via Tripadvisor
Unreal boat trip to see turtles and riding with horses in the sunset
Unreal experience and such lovely people!!! Everything was amazingly organised and every trip we did was with them. Would 100% recommend xx
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
- Hotel pickup
- No pickup, meet at start point
- Booked in 30 days
- 11
- Verdict
- Strongly Recommended
Who runs this experience
Operated by Luxury Island Events, who run 5 experiences we rank across 1 city, with an average Outty Ranking of 52.8.
See everything Luxury Island Events runsWhy this scores 74
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Zakynthos.
How much does Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands cost?
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Prices start at $69 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands worth it?
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It holds an Outty Ranking of 74 out of 100, which we label "Strongly Recommended". That score blends traveler sentiment (4.8/5 across 32 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands?
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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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands?
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Around 11 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands?
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Included: Private transportation. Not included: Snorkeling kit; and Toilet. Always check the voucher for the final list before you travel.
Where is the meeting point for Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands?
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When you arrive at the port of Agios Sostis you will find the sign "BEST OF ZANTE" where you will find your boat there at the port . Towards the left side of the little church. Hotel pickup is not included, so plan your own transport and arrive 15 minutes early.
What languages is Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands offered in?
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It is offered in Greek and 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands?
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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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands wheelchair or stroller accessible?
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The operator notes: Not recommended for pregnant travelers. If accessibility is critical, contact the operator after booking to confirm arrangements for your date.
What happens to Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands 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: Glass Bottom Turtle Boat Tour to Keri Caves & Islands?
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Across 32 reviews averaging 4.8 out of 5, recurring themes include the guide, knowledge and storytelling, value for money. Travelers single out the guide as the reason the experience works.
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