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Turtle Cruise to Marathonisi and Keri Peninsula

4/5
1833 reviews

Loggerhead sea turtles have been residents of Zante's beaches for thousands of years, and with a bit of luck, you'll see them first-hand on this boat trip. Join an expert local guide for an educational day out at sea, passing by nesting sites, swimming in hidden bays and spending time in the village of Keri. Bianca, one of our guides, says, ‘In just one trip, you get to jump into clear waters, cruise along the Keri peninsula and, with luck, see turtles.'

Available either in the morning from Zante harbour or the afternoon from Keri harbour, this half-day cruise is a real treat for all the family. You'll pass by the golden beaches of Vassilikos and Marathonisi, a pine-clad islet dubbed ‘Turtle Island'. The reason's simple – one of its beaches is a favourite turtle nesting site. Bianca, who's lived on Zante for more than 20 years, says of the scenery, ‘You can do this tour a thousand times and every day is different.' Be sure to keep a lookout for Loggerheads, and you may even spot a wild dolphin or two.

Plus, you'll sail along the Keri peninsula, cruising by its sea-plunging cliffs, caves and lighthouse before dropping anchor for a swim stop at the Bay of Oasis. In the small village of Keri, you have a quick stop to shop for souvenirs, relax in a typical taverna or hit the beach. What's more, a volunteer from local conservation group ARCHELON – the Sea Turtle Protection Society of Greece – will be on board to give you the lowdown on its work.

What is the itinerary for this experience?

This experience is available as a morning or afternoon turtle cruise, so the itinerary timings change depending on which one you pick.

Morning option:

- 8:45am – depart from Zakynthos Harbour

- 9:30am to 10:00am – swimming stop at Vasilikos (Porto Roma) for 30 minutes

- 11:00am to 11:20am – turtle spotting in Laganas Bay

- 11:25am to 11:35am – photo stop at Marathonisi (Turtle Island)

- 11:45am to 12:30pm – swimming stop at Oasis Bay for 45 minutes

- 12:40pm to 12:50pm – photo stop at the Keri Caves

- 1:00pm to 1:30pm – stop at Keri fishing village with time for a short village walk

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Afternoon option:

- 12:50pm to 1:20pm – arrive at Keri, village walk and boat departure

- 1:30pm to 1:40pm – photo stop at the Keri Caves

- 2:00pm to 2:45pm – swimming stop at Oasis Bay for 45 minutes

- 2:50pm to 3:10pm – turtle spotting

- 3:15pm to 3:25pm – photo stop at Marathonisi (Turtle Island)

- 4:25pm to 4:55pm – swimming stop at Vasilikos

- 5:40pm – arrive back at Zakynthos Port and transfer to your resort

Please note, the times and schedule may vary on the day

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Main features

Free cancellation
Place: Zante
Duration: from 4 hours to 8 hours
Language:English
Mobile voucher accepted

Additional features

Entrance fees included
Guided tour
Instant confirmation
e-Voucher
Hotel pick up

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Why you’ll love this…

  • On this cruise around Marathonisi sland you'll be on the lookout for Loggerhead turtles
  • There's an opportunity to learn about ongoing projects by local turtle conservation group ARCHELON
  • In the small village of Keri there's free time to shop, relax or simply soak up some rays
  • You can cool off with a swim in the Bay of Oasis near the Keri peninsula's dramatic cliffs
  • Your expert local guide knows the waters around Turtle Island well and will show you the best spots

Important to know

  • There's a snack bar onboard the boat where you can purchase food and drinks
  • By choosing this excursion you are helping ARCHELON and contributing to the care of endangered turtles
  • Suitable for guests with reduced mobility as there is space for wheelchairs
  • Please provide your passport/ID details at time of booking
  • Please be aware that afternoon tours will start in Keri with same itinerary and end at Zakynthos town port where a coach will bring you back to your hotel
  • While sightings of Loggerhead turtles are frequent on this tour, they are wild animals, so there's no guarantee of spotting them
  • Pick-ups are available from selected hotels in the following resorts:
    - Keri
    - Porto Koukla
    - Agios Sostis
    - Laganas AGANAS
    - Kalamaki
    - Argassi
    - Tsilivi
    - Tragaki
    - Kypseli
    - Amoudi
    - Alykanas
    - Alykes If you don't see the option to add a hotel for pick-up, please provide details at checkout
  • Morning Tour: You'll arrive at the port in the centre of Keri around 12:45 pm. Coaches for the return transfer will be waiting at the central parking area and will depart at 1:00 pm
  • Afternoon Tour: The boat Seven Island Cruises will be at the port in the centre of Keri and will depart at 1:20 pm
  • If your return flight leaves late in the evening, this tour is a great way to enjoy your last day in Zakynthos. You'll be back at your hotel at around 3:30 pm. If you're staying in Keri or Alykes, please confirm the return time with your representative
  • Bring bathing gear and sunblock
  • Bring a towel
  • Bring money for extras or gratuities
  • Food and drinks not included

Cancellation policy

Receive a 100% refund if you cancel up to 1 day before the experience begins.


What’s included

  • Transport
  • Guide
  • Boat trip

Booking fee

Good news! No extra fees are applied to this booking.


Pickup points

To see which pickup points are available, check under availability & prices.

Provider

TUI Hellas Travel, Tourism and Airlines SA


What people say about this experience

4/5

All reviews are verified

Based on 1833 reviews


Review categories

Safety

4.6/5

Service

3.8/5

Staff

4.2/5

Value for money

3.8/5


35%
39%
19%
4%
3%

Sort by:

  • N

    Natalie

    Travelled as a couple


    1 October 2026
    5

    United Kingdom

    Very good cruise, knowledgeable staff and great that we saw a turtle. The swim stops were lovely and the pick up and drop off worked well.

  • J

    J Wilson

    Travelled as a couple


    1 October 2026
    5

    United Kingdom

    Brilliant trip Staff made everyone welcomed and made safety there first priority

  • M

    MH

    Travelled as a couple


    27 September 2026
    5

    United Kingdom

    A really well organised trip, picked up on time, boat was well equipped to get drinks and snacks, difficult to hear the guide at times but good value for money.

  • S

    Sue

    Travelled as a couple


    24 September 2026
    5

    United Kingdom

    Although unfortunately we didn't see any turtles the whole experience was very good. The scenery whilst travelling on the boat was superb there were 2 stops for swimming. The boat was a decent size so although there were three coaches on board there was plenty of room for everyone not to feel cramped. We would definitely recommend it. We started at Keri cove and finished at Zante Town.

  • J

    Johanna

    Travelled as a couple


    26 September 2026
    5

    Netherlands

    Great experience, grote-, nette- en mooie- en veilige boot 🛥️. Vriendelijk personeel, genoeg zitruimte voor ieder wat wils (verschillende dekken) twee zwemstops en veel uitleg van de Nederlandse Gids van onze dag (Bianca), snackbar aan boord voor de nodige versnappering. Zelfs een grote schildpad 🐢 gezien van dichtbij, daar neemt de kapitein ook zijn tijd voor. Zeker een aanrader, goed georganiseerd door Tui, transfer vanaf hotel tot aan de haven, je wordt goed begeleid !

  • D

    Dan Smith

    Travelled with family


    15 September 2026
    5

    United Kingdom

    Lovely tour/ day out! The boat was very nice with good option to sit in air conditioned lower deck, shaded middle deck or a sun deck at the top. Seeing turtle island was interesting but it is from a distance you don’t go ashore. We got very lucky with a turtle coming for air right next to the boat so had amazing views of a beautiful creature! The boat won’t go hunting for turtles so to not stress them which is lovely as others crowd them and it’s not fair! Swim stops were lovely too!