Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands
Zakynthos, Greece

Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands

Outty Ranking 74 4.8 · 32 traveler reviews3 hoursFrom $69
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Outty Ranking

74/100

Strongly Recommended. Our proprietary evaluation. How we score

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

    1. 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

    2. 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

    3. 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

    4. 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

    Keri Caves, Laganas Bay, Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & IslandsSee the turtles, Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & IslandsCameo Island, Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & IslandsSnorkeling in blue caves, Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & IslandsKeri caves, Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & IslandsCameo island, Zakynthos: Glass Bottom Turtle Boat Tour to Keri Caves & Islands

    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 mentions

    Travelers single out the guide as the reason the experience works.

    Knowledge and storytelling

    3 mentions

    Reviewers describe the commentary as informative rather than scripted.

    Value for money

    2 mentions

    Travelers feel they got more than they paid for.

    Organization

    2 mentions

    Pickup, 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.

    5 star
    28
    4 star
    3
    3 star
    1
    2 star
    0
    1 star
    0
    Sort
    Orianna G · June 2026

    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

    Dreamer13846063307 · September 2025

    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

    LaurenAg1987 · September 2025

    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

    Companion24203829759 · August 2025

    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

    Q4417JFisabelg · August 2025

    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 runs

    Why this scores 74

    The Outty Ranking is a weighted composite. Here is how this experience performed on each component.

    Traveler sentiment (30% weight)80
    Review evidence (18% weight)59
    Booking momentum (14% weight)51
    Value for money (12% weight)84
    Listing quality (10% weight)85
    Local standing (8% weight)67
    Booking flexibility (8% weight)100

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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?

    +

    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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