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Crystal clear waters of Sardinia in one of the best boat trips in Sardinia.
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GRGreeceZakynthos (Zante)Keri

BEST Boat Trips in Marathonisi (Turtle Island)

5 Offers with the Best Prices 2026
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Locations
Activity
Categories
Included services
Ideal for
Languages
Duration
Picture of a girl swimming next to a trutle during the Boat Trip to the Keri Caves with Turtle Spotting with Best of Zante
Just booked
Best of Zante Boats
Boat Trip to the Keri Caves with Turtle Spotting
Best of Zante Boats
4.8(30)
Starting from: Agios Sostis, Laganas, Kalamaki
3 hours
Free cancellation
Pickup available
4.8(30)
Pickup available
From
10 €
Check availability
Boat Trip to Mizithres & Turtle Island with Turtle Spotting from Traventure Zakynthos.Traventure Zakynthos
Boat Trip to Mizithres & Turtle Island with Turtle Spotting
Traventure Zakynthos
4.8(30)
Starting from: Agios Sostis
4 hours
Free cancellation
Pickup available
4.8(30)
Pickup available
From
30 €
Check availability
Boat Trip from Agios Sostis to the Keri Caves & Turtle Island from Traventure Zakynthos.
Just booked
Traventure Zakynthos
Boat Trip from Agios Sostis to the Keri Caves & Turtle Island
Traventure Zakynthos
4.8(44)
Starting from: Agios Sostis
3 hours
Free cancellation
Pickup available
4.8(44)
Pickup available
From
25 €
Check availability
A view of Navagio Shipwreck Beach, where My Tours stops for swimming during the boat tour around Zakynthos.
Just booked
My Tours Zakynthos
Boat Trip around Zakynthos to Shipwreck & Turtle Island with Swimming
My Tours Zakynthos
4.8(12)
Starting from: Zante Town
8 hours
Free cancellation
4.8(12)
From
30 €
Check availability
My Tours glass bottom boat goes to Marathonisi-Island and Keri-Caves.
Just booked
My Tours Zakynthos
Boat Trip to Marathonisi Island and Keri Caves with Turtle Spotting
My Tours Zakynthos
5.0(9)
Starting from: Agios Sostis
3 hours
Free cancellation
5.0(9)
From
19 €
Check availability

Offers available nearby

What customers love about boat trips in Marathonisi (Turtle Island)

4.8
125 reviews
Taxi Boat to Turtle Island from Agios Sostis from Traventure Zakynthos.Traventure ZakynthosTaxi Boat to Turtle Island from Agios Sostis
18 Reviews
Sarah · FamilyDEGermany

Excellent organization! Very friendly staff! :) We even drove a detour to see the turtles. Drop-off and pick-up were flawless. We would definitely use them again!

Boat Trip from Agios Sostis to the Keri Caves & Turtle Island from Traventure Zakynthos.Traventure ZakynthosBoat Trip from Agios Sostis to the Keri Caves & Turtle Island
44 Reviews
Birgit · Solo travelerDEGermany

I highly recommend Traventure Zakynthos; everything went perfectly from start to finish.

People Watching a Turtle on Turtle Spotting Boat Trip to Turtle Island and Keri Caves from Michael Travel Zakynthos.Michael Travel ZakynthosGlass-bottom Boat Trip to Turtle Island and Keri Caves with Turtle Spotting
4 Reviews
Elselien · CoupleNLNetherlands

Great day! The program is well put together, an effort is made to find turtles. We swam wonderfully and enjoyed the beautiful surroundings. And... we also saw a turtle, despite it not being the right season. If you have the chance, sit at the front of the boat, wonderful! The captain makes an effort for his passengers, despite the fact that we were of course number 20,000!

Popular Boat Tour Providers in Marathonisi (Turtle Island)

Traventure ZakynthosTraventure Zakynthos
185 Reviews
11 Offers
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Free cancellation for all offers
Arjan · CoupleGRGreece

Absolutely fantastic in one word: 3 hours is enough to see everything properly, and we even saw turtles – what more could you ask for?

Best of Zante BoatsBest of Zante Boats
132 Reviews
2 Offers
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Free cancellation for all offers
Instant booking confirmation for all offers
Alexander · CoupleATAustria

Captain Alexandros was a fantastic and very entertaining tour guide. This tour far exceeded our expectations. We were very surprised that no one else gave the crew any tips...

My Tours ZakynthosMy Tours Zakynthos
36 Reviews
5 Offers
One of the boats of My Tours Zakynthos navigating in the Ionian Sea during a boat trip.
Free cancellation for all offers
Con · CoupleAUAustralia

We absolutely loved it It was one of our highlights of our holidays in Zakynthos Swimming in crystal clear waters in caves Absolutely stunning and marathonisi Island just gorgeous

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A picture of a luxurious motor boat during the Private Boat Trip to Turtle Island and Keri Caves with Snorkeling from Mistral Rentals Zakynthos.
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A picture of a luxurious motor boat during the Private Boat Trip to Turtle Island and Keri Caves with Snorkeling from Mistral Rentals Zakynthos.
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Picture of a girl swimming next to a trutle during the Boat Trip to the Keri Caves with Turtle Spotting with Best of Zante
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