3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, Greece
Zakynthos, Greece

3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting

Outty Ranking 69 4.3 · 73 traveler reviews3 hoursFrom $28
Instant mobile ticketSpots available today

Outty Ranking

69/100

Solid Choice. Our proprietary evaluation. How we score

Traveler rating

4.3/5

Based on 73 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.

Quick answer

Is 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting worth booking?

3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting is a 3-hour experience in Zakynthos, Greece, from $28 per person. It scores 69 out of 100 on the Outty Ranking, which we label “Solid Choice”, based on a 4.3/5 rating across 73 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.

Outty Ranking
69 / 100
Rating
4.3/5 (73)
Duration
3 hours
From
$28 per person

This is one of the most beautiful tour here in Zakynthos because it allows you to see all the most beautiful places in the National marine park of Zakynthos. Admire the Caretta Caretta turtles, Keri caves area, large cave on the turtle island and enchanting sandy beach of Marathonisi islet Comfortable boats with limited numbers of guests and seating for everybody. Only 23 seats, the boats all have shaded seating, rear sundeck and glass bottom. We suggest that you buy some drinks and snacks in Laganas before departure. On the island of Marathonisi you can buy snacks, drinks and ice cream. All the other stages of this excursion do not have the possibility of refreshment..

What you get

    About this experience

    This is one of the most beautiful tour here in Zakynthos because it allows you to see all the most beautiful places in the National marine park of Zakynthos. Admire the Caretta Caretta turtles, Keri caves area, large cave on the turtle island and enchanting sandy beach of Marathonisi islet Comfortable boats with limited numbers of guests and seating for everybody. Only 23 seats, the boats all have shaded seating, rear sundeck and glass bottom. We suggest that you buy some drinks and snacks in Laganas before departure. On the island of Marathonisi you can buy snacks, drinks and ice cream. All the other stages of this excursion do not have the possibility of refreshment..

    What's included

    Included

    • Glass bottom

    What you'll see and do

    1. Enchanting Island of Marathonisi islet Stop for Swimming at beautiful Sandy Beach. Marathonissi is a small private island in the turtles’ bay close to Limni Kerì’s beach. Until the second world war the island was lived, today it has neither inhabitants nor buildings. It is now one of the areas where the CARETTA CARETTA turtles go to breed.

      60 minutes here

    2. Keri Caves

      First Stop will be at Keri Caves - Amazing place First Stop for Swimming Kerì Caves, accessible only by sea with private boats or our excursions, develop along the promontory of Marathia Cape, in the South-West area of the island. Along the coast there are many caves which entrances scarcely suffice to get in swimming, others are broad enough to enter directly with a boat. It is very easy to reach the caves that are surmounted by cliffs where the sea is very deep and as such reachable.

      40 minutes here

    3. Laganas

      Turtle Spotting: Starting with Turtles Spotting just out in the Laganas Bay The Caretta Caretta Turtle is a specimen still living in the Mediterranean and it is possible to meet it there since it spawns along the beaches of the Laganas Gulf. They can have considerable dimensions (the largest weights 140 kg. and measures circa 120 cm whereas the smallest measures 80 cm.) but, in spite of this, they are very fast. Thanks to the big anterior and the stiff posterior fins they can reach 30km/hour and so protect themselves from possible dangers.

      45 minutes here

    Where it starts and ends

    Meeting point

    Zakynthos

    YOTOMU NAUTILOS MEETING POINT 37°42’54.6”N 20°51’51.1”E We Meet under the NAUTILOS Flag Gate CLOSE 20 minutes before Tour departure Time - If you arrived later Captain discretion to let you in NO CALL or Message for late Arrival You can contact us ONLY by Whatsapp here +306980780697

    Hotel pickup

    No pickup: everyone meets at the start point.

    Ends at

    YOTOMU NAUTILOS MEETING POINT 37°42’54.6”N 20°51’51.1”E We Meet under the NAUTILOS Flag Gate CLOSE 20 minutes before Tour departure Time - If you arrived later Captain discretion to let you in NO CALL or Message for late Arrival You can contact us ONLY by Whatsapp here +306980780697

    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 15 travelers per booking
    Operated by
    YOTOMU

    Know before you go

    • Service animals allowed
    • Infants are required to sit on an adult’s lap
    • Suitable for all physical fitness levels

    Photos

    3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, photo 23 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, photo 33 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, photo 43 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, photo 53 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, photo 63 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting in Zakynthos, photo 7

    What travelers are saying

    Outty’s summary of the themes that recur across 73 traveler reviews. Written by us, not quoted from reviewers.

    Photo opportunities

    4 mentions

    The views and photo stops come up again and again.

    The guide

    2 mentions

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

    Value for money

    2 mentions

    Travelers feel they got more than they paid for.

    Good for families

    2 mentions

    Reviewers traveling with kids report it landed well with their group.

    Traveler reviews

    73 verified traveler reviews for 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting. Ratings and reviews provided by Viator and Tripadvisor.

    5 star
    52
    4 star
    7
    3 star
    4
    2 star
    5
    1 star
    5
    Sort
    U5540RMamandad · September 2026

    Great experience

    Great experience, we were able to see a turtle and enjoy the beautiful views and swim in the most beautiful and blue waters

    via Tripadvisor

    226nelih · September 2026

    Wondeeful boat trip

    It was an absolutely wonderful boat tour with a fantastic captain. The instructions regarding the meeting point and the tour arrangements were clear and precise. The captain was great and even showed us turtles surfacing from the water. We highly recommend this experience!

    via Tripadvisor

    libbymJ7976NX · September 2026

    Breathtaking experience

    Great experience, the guide knew exactly where to take us , we saw some beautiful caves with the most clearest water where we was aloud to swim for a certain amount of time , he always slowed the boat down for photos and made sure everyone felt very comfortable , we went past Camino island and headed towards turtle island were we stopped for 1 hour with a lovely beach and a perfect opportunity to do some snorkelling, the island had a little food stand where you could get ice cream and beverages.Once the hour was up we had a nice slow trip back to the port. Definitely recommend this trip as it’s a great price and a great guide, will be doing this again when next in Greece

    via Tripadvisor

    Georgios_P · August 2026

    Just the very basics...

    There was nothing special to see. Marathonisi beach was just an ordinary beach. Maybe, because of the very windy weather we could not see the alleged crystal clear waters. And if you want to see more interesting sea caves better prefer the ones at the north of the island, near the shipwreck beach.

    via Viator

    Llinos_W · August 2026

    It was ok

    Arrival was chaos. Huge queue, panics that there wasn't enough space on the boat. Another one thankfully arrived. Once on the boat, we were taken to the 1st stop. We were informed we would be there for 1.5 hours, which on the face of it was good, however in the blistering August heat with no shade, it wasn't ideal with young children. We then spent the last 30 mins going to see some caves a 5 minute dip off the boat and 5 mins to see the sea turtle. Both guides were great although the company's arrangements were chaotic. It was more like a ferry service We would recommend it but with the 3 hours fairly spaces out

    via Viator

    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
    26
    Verdict
    Solid Choice

    Who runs this experience

    Operated by YOTOMU, who run 32 experiences we rank across 5 cities, with an average Outty Ranking of 53.5.

    See everything YOTOMU runs

    Why this scores 69

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

    Traveler sentiment (30% weight)54
    Review evidence (18% weight)73
    Booking momentum (14% weight)68
    Value for money (12% weight)100
    Listing quality (10% weight)84
    Local standing (8% weight)22
    Booking flexibility (8% weight)100

    3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting: questions travelers ask

    Practical detail on this experience, plus the wider planning questions for Zakynthos.

    How much does 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting cost?

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    Prices start at $28 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting worth it?

    +

    It holds an Outty Ranking of 69 out of 100, which we label "Solid Choice". That score blends traveler sentiment (4.3/5 across 73 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting?

    +

    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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting?

    +

    Around 26 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting 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?

    +

    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?

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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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting?

    +

    Included: Glass bottom. Always check the voucher for the final list before you travel.

    Where is the meeting point for 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting?

    +

    YOTOMU NAUTILOS MEETING POINT 37°42’54.6”N 20°51’51.1”E We Meet under the NAUTILOS Flag Gate CLOSE 20 minutes before Tou. Hotel pickup is not included, so plan your own transport and arrive 15 minutes early.

    What languages is 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting?

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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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting wheelchair or stroller accessible?

    +

    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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting 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 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting?

    +

    Across 73 reviews averaging 4.3 out of 5, recurring themes include photo opportunities, the guide, value for money. The views and photo stops come up again and again.

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    Pick a date, choose your group, and see the exact price for 3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting.

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