Zakynthos Marine Park: Turtle Watching & Caves Tour

Embark on a 3-hour tour of Marathonissi Island, Keri Caves, and Turtle Spotting in Zakynthos. Discover the beauty of the National Marine Park and encounter Caretta Caretta turtles. Enjoy comfortable boats, limited guests, and stunning sights.

Duration: 3 hours
Cancellation: 24 hours
Highlights
  • Marathonísi - 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…
What's Included
    • Glass bottom boat ride showcasing underwater views
Additional Information

Embark on one of the most scenic journeys in Zakynthos, showcasing the awe-inspiring locations within the Zakynthos National Marine Park.
Experience the majestic Caretta Caretta turtles, the area of the Keri caves, a vast cave on turtle island, and the magical sandy shores of Marathonisi islet.
Our cozy boats accommodate a limited amount of passengers,…

Location
8G92PV78+X2X
YOTOMU NAUTILOS MEETING POINT 37°42’54.6”N 20°51’51.1”E We Meet under the NAUTILOS Flag 10 minutes before departure
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.1
(41 Ratings)
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Jessica
Jul 13, 2025
Magic experience - Unique experience! Kindness , sympathy and friendly and relaxed atmosphere! As soon as we left we immediately met the turtles caretta caretta! This alone is worth the full cost ( inter alia economic ). Then the tour, the bath at the dream caves, I wanted to stay there! Then beach on turtle island .batrettinj with cold drinks and coffee! Magic! Five stars to Captain Peter🫶🏼nice , available! An experience to do if you come to Zakynthos! Top!
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Manciofranco
Jul 9, 2025
The Paradise of Zakynthos - The paradise of Zakynthos is contemplated with a three-hour tour, where you can admire the caves of Keri, with stop and bath, and the golden beach of Marathonisi where the caretta turtles nest.
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Guide28310940686
Jun 28, 2025
Beautiful day - Beautiful day with skipper Dionisio super nice. Beautiful sea and spectacular coastline. Very satisfied with the experience.
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Davemuir
Oct 20, 2024
Great family day out - I was worried about going on this trip with young children, especially my 3 year old, but they loved it. Our Captain quickly located some turtles, which everyone loved. We then explored the area around Keri caves and stopped for a swim in some beautiful water. We then stopped at Marathonisi for an hour. Everyone loved it.
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Miekeyde
Oct 10, 2024
3h is long enough to fully enjoy the imposing cliffs and caves - Discovering the south of the island on a boat, was super. We were already standing above the cliffs during a walk, but being able to stand on a small white sandy beach and swim in clear blue-green water, was fantastic. We really enjoyed the waves, the white foam of the boat, the Greek boat flag (and us too) in the sun, the imposing nature along the edges of the coast.... Beware of the turtles' nests please, some tourists keep raging...
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Linette
Sep 25, 2024
Very nice - The boat was almost full and because we were 6 we got a private boat. The Guide was very friendly. We have spotted turtles have been in the caves with the small boat as far as possible and had a stop of 1 hour on the turtle island.
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Brummiebrett
Sep 23, 2024
Better than expected - We booked the trip with honestly quite low expectations of seeing any turtles and were just up for a sunny boat trip. The captain had a good search around for turtles and the other operators all help each other when one is spotted. We managed to see two turtles surfacing next to the boat and had a great swim at both stops. The boat wasn’t overcrowded and the captain was probably the most excited person on the boat when each turtle was spotted, which made for a fun memorable experience. The trip was excellent value and we would recommend it to anyone.
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276joannat
Sep 7, 2024
Enjoyable private tour with swimming stops - We had fantastic time on the 3-hour cruise. There were about 20 people on board, the atmosphere was nice and captain was very friendly and cared for our experience. We quickly spotted a turtle and spent quite some time observing it. We really enjoyed both swimming stops too, saw lots of fish. I would advise to take your snorkeling equipment with you. We really recommend the tour! Thank you
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Cjshort43
Jun 2, 2025
Opportunities for great pics. - This was a nice trip. I think the captain could have talked more and a drink included in the price would have been good. Kids really enjoyed it. We saw 3/4 turtles.
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F7124skstefanv
Sep 15, 2024
Would rather discourage - In key points: Meeting point 10 minutes before at the boat dock. Boat arrived about 30 minutes late, so waited with a larger group almost three quarters of an hour in blazing sun. No drinks or toilet facilities nearby. Messed up when boarding and felt twice as many as seats on the boat (invisible why, the surplus people were then transferred to another boat, which apparently belonged to another provider). It all seemed chaotic and disorganized. After a delay of about 45 minutes we finally started and we were brought to this turtle island without any special information (the boat driver speaks only medium English) and dropped off here on a completely crowded beach for over an hour and a half - to be able to “bathe” here... The strip on the beach is cordoned off after a few meters (presumably to protect turtles, but you can't see any here). At least two “kiosk boats” were then among the other boats docking around 10 to 15. No shade either, and the rest of our group didn't understand why and why they dropped off for so long. Nobody wanted that long stop. So our boatmaster just dropped us off and then disappeared again (probably to drive another group from A to B in the roughly one and a half hour during our involuntary long swim stop). Again everything seems quite disorganized or nothing is explained. So the officially one-hour bathing stop turned into one and a half hours and we started with a delay of three quarters of an hour. After that everything happened very quickly (from twice 45 min as announced). Short boat trip to the back of the island Marathonisi, short stop at the cave and then we went on to the Keri Caves - or Cape Marathia and not to the actual caves further west... Instead, another half an hour to jump into the sea from the boat. Water, location, everything already nice, no question, but after the delays already incurred (45 minutes at the start and almost another 45 minutes on this crowded beach) we would have preferred to see more of the coast and the caves). Then quickly back to the original mooring and - oh, how surprising - a short drive on to a larger water turtle. Probably the one who probably “lives” there - see Google Maps “Turtle Spot”). Overall we were on the road for these 3 hours, but the bottom line was that we were disappointed: Disorganized, poor infrastructure (no shade, drinks, toilet), no explanations from the “tour guide”, who was actually only boater, delay and delays, too little of the actually announced coastlines and caves as well as no turtles - except for the one at the pier, which you probably see without boat trip from the shore. All in all, the effect of a tourist trap. Just the number of other providers who want to attract customers almost intrusively. Hundreds of tourists at one point. That's nice, but whether you need it that way... And better inform in more detail if there are not other tours, smaller, or with more targeted and longer duration on the coast/caves. Then they went by car from above to the steep coast (Myzithres Rock, Scenic Viewpoint) and were then appeased here again - mad view 😃 The one before was more of a 3-hour boat trip or net almost only 1 hour with 2 bathing stops, one of them much too long. You can do it, but there are certainly more sensible possibilities of a boat tour with a sightseeing background. Yassas
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From $29
up to 15 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).