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Several boats near the coast during a boat trip to Keri Caves.
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GRGreeceZakynthos (Zante)Keri

Boat Trips from Marathonisi (Turtle Island) to Keri Caves

18 Offers with the Best Prices 2026/2027
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Popular Options
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 ZanteBest of Zante Boats
Boat Trip to the Keri Caves with Turtle Spotting
Best of Zante Boats
4.9(34)
Starting from: Agios Sostis, Laganas, Kalamaki
3 hours
Free cancellation
Pickup available
4.9(34)
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.Traventure Zakynthos
Boat Trip from Agios Sostis to the Keri Caves & Turtle Island
Traventure Zakynthos
4.9(47)
Starting from: Agios Sostis
3 hours
Free cancellation
Pickup available
4.9(47)
Pickup available
From
25 €
Check availability
Turtle spotted during the RIB Boat Trip to Marathonisi and Keri Caves with Turtle Spotting from Explore Zakynthos.Explore Zakynthos
RIB Boat Trip to Marathonisi and Keri Caves with Turtle Spotting
Explore Zakynthos
Starting from: Vasilikos
4 hours
Free cancellation
Drinks available
Drinks available
From
40 €
Check availability
People Watching a Turtle on Turtle Spotting Boat Trip to Turtle Island and Keri Caves from Michael Travel Zakynthos.Michael Travel Zakynthos
Glass-bottom Boat Trip to Turtle Island and Keri Caves with Turtle Spotting
Michael Travel Zakynthos
5.0(4)
Starting from: Argasi
3 hours
5.0(4)
From
25 €
Check availability
Boat with glass-bottom from VIP Turtle Spotting Boat Trip to Turtle Island and Keri Caves from Michael Travel Zakynthos.Michael Travel Zakynthos
Luxury Boat Trip to Turtle Island and Keri Caves with Turtle Spotting
Michael Travel Zakynthos
4.7(3)
Starting from: Argasi
3 hours
4.7(3)
From
30 €
Check availability
Viewpoint of Mizithres on Zakynthos Day Trip incl. Turtle Island, Keri Caves and Olive Press Museum from Michael Travel Zakynthos.Michael Travel Zakynthos
4x4 & Boat Trip to Turtle Island and Keri Caves with Turtle Spotting
Michael Travel Zakynthos
5.0(1)
Starting from: Argasi
6 hours
Pickup available
5.0(1)
Pickup available
From
65 €
Check availability
Turtle Swimming in water During Glass-bottom Boat Trip to Turtle Island & Cameo Island with Turtle Spotting from Dali Tours Zakynthos.
Just booked
Dali Tours Zakynthos
Glass-Bottom Boat Trip to Turtle Island & Cameo Island with Turtle Spotting
Dali Tours Zakynthos
Starting from: Zakynthos (Zante)
5 hours
Free cancellation
Pickup available
Pickup available
From
30 €
Check availability
Semi Private Sunset Boat Trip to Cameo, Marathonisi & Mizithres Island from Best of Zante Boats.Best of Zante Boats
Semi Private Sunset Boat Trip to Cameo, Marathonisi & Mizithres Island
Best of Zante Boats
5.0(1)
Starting from: Laganas
3 hours
Free cancellation
Pickup available
5.0(1)
Pickup available
From
25 €
Check availability
Private Boat Trip to Turtle Island and the Mizithres Rocks from Traventure Zakynthos.Traventure Zakynthos
Private Boat Trip to Turtle Island and the Mizithres Rocks
Traventure Zakynthos
5.0(21)
Starting from: Agios Sostis
3 - 5 hours
Free cancellation
Pickup available
5.0(21)
Pickup available
From
300 €
Check availability
Picture of a loggerhead sea turtle spotted in the private boat trip to Marathonisi Island and the Keri Caves with turtle spotting with Serene Private Cruises.Serene Private Cruises Zakynthos
Private Boat Trip to Marathonisi Island & the Keri Caves with Turtle Spotting
Serene Private Cruises Zakynthos
Starting from: Kavos Psarou
4 hours
Free cancellation
Drinks available
Drinks available
From
310 €
Check availability
Private Boat Trip to the Keri Caves and the Shipwreck from Traventure Zakynthos.Traventure Zakynthos
Private Boat Trip to the Keri Caves and the Shipwreck
Traventure Zakynthos
5.0(1)
Starting from: Agios Sostis
6 hours
Free cancellation
Pickup available
5.0(1)
Pickup available
From
600 €
Check availability
Bird's-eye view of the motorboat used in the private boat trip around Zakynthos with turtle spotting with Serene Private Cruises.Serene Private Cruises Zakynthos
Private Boat Trip around Zakynthos with Turtle Spotting
Serene Private Cruises Zakynthos
5.0(1)
Starting from: Kavos Psarou
8 hours
Free cancellation
Drinks available
5.0(1)
Drinks available
From
700 €
Check availability
Private Boat Trip to the National Marine Park of Zakynthos from My Local Sea Zakynthos.My Local Sea Zakynthos
Private Boat Trip to the National Marine Park of Zakynthos
My Local Sea Zakynthos
5.0(3)
Starting from: Agios Sostis
3 hours
Free cancellation
5.0(3)
From
280 €
Check availability
Private Boat Trip to the Turtle Island & Keri Caves with Turtle Spotting from My Local Sea Zakynthos.My Local Sea Zakynthos
Private Boat Trip to the Turtle Island & Keri Caves with Turtle Spotting
My Local Sea Zakynthos
5.0(1)
Starting from: Agios Sostis
3 hours
Free cancellation
5.0(1)
From
300 €
Check availability
A picture of a luxurious motor boat during the Private Boat Trip to Turtle Island and Keri Caves with Snorkeling from Mistral Rentals Zakynthos.Mistral Rentals Zakynthos
Private Boat Trip to Turtle Island and Keri Caves with Snorkeling
Mistral Rentals Zakynthos
Starting from: Kavos Psarou
5 - 6 hours
Drinks available
Drinks available
From
590 €
Check availability
Showing 1 - 16 out of 18 offers

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

4.9
147 reviews
Taxi Boat to Turtle Island from Agios Sostis from Traventure Zakynthos.Traventure ZakynthosTaxi Boat to Turtle Island from Agios Sostis
21 Reviews
Thierry · Group of friendsFRFrance

I booked just 20 minutes before. The confirmation was very quick and we were taken care of immediately. As a bonus, we saw a turtle. Thank you to the team.

Boat Rental in Agios Sostis (up to 5 people) - Beginner (25-30 HP).Traventure ZakynthosBoat Rental in Agios Sostis (up to 5 people) - Beginner (25-30 HP)
31 Reviews
Mike · FamilyGRGreece

Excellent service and boat, beautiful location and great family fun. Made our holiday.

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
47 Reviews
Sylvia · FamilyGRGreece

Small boat, plenty of time to swim, and the skipper did his best to locate the turtles for us.

Popular Boat Tour Providers in Marathonisi (Turtle Island)

Traventure ZakynthosTraventure Zakynthos
198 Reviews
11 Offers
null-null-hero
Free cancellation for all offers
Thierry · Group of friendsFRFrance

I booked just 20 minutes before. The confirmation was very quick and we were taken care of immediately. As a bonus, we saw a turtle. Thank you to the team.

Best of Zante BoatsBest of Zante Boats
136 Reviews
2 Offers
null-null-hero
Free cancellation for all offers
Instant booking confirmation for all offers
Johanna · FamilyGRGreece

Nice boat with spacious benches, which is ideal with small children. Swimming from the boat, both in a bay and at a small beach, was lovely. We actually saw two large turtles as well: one in the harbor (it is being fed, though) and one at sea.

Serene Private Cruises ZakynthosSerene Private Cruises Zakynthos
10 Reviews
5 Offers
The astonishing Navagio Beach with the famous shipwreck from 1980, visited with Serene Private Cruises Zakynthos.
Free cancellation for all offers
Eirik · CoupleNONorway

Great captain, good information during the trip. Good stops where we could take a swim. Loots of caves! Good sunset spot

Michael Travel ZakynthosMichael Travel Zakynthos
9 Reviews
5 Offers
Picture of tour in Zakynthos by Michael Travel Zakynthos.
Olga · FamilyNLNetherlands

Good experience for good price!

My Local Sea ZakynthosMy Local Sea Zakynthos
4 Reviews
2 Offers
A boat on the crystal clear water and white sand.
Free cancellation for all offers
Instant booking confirmation for all offers
Marianne · CoupleGRGreece

Everything went perfectly! It was a lovely tour.

Explore ZakynthosExplore Zakynthos
3 Reviews
3 Offers
View on the bay in Zakynthos by Explore Zakynthos.
Free cancellation for all offers
Mascha · FamilyDEGermany

Great tour and very nice crew. Also very good with kids!

Marathonisi (Turtle Island): All locations

My Tours glass bottom boat goes to Marathonisi-Island and Keri-Caves.
Marathonisi Beach

3 offers

Marathonisi (Turtle Island): Similar activities

The boat used for the boat rental in Keri with Fun@Sea.
Private Boat Tours Marathonisi (Turtle Island)

21 offers

Boat Trip from Agios Sostis to the Keri Caves & Turtle Island from Traventure Zakynthos.
Beach Boat Trips Marathonisi (Turtle Island)

21 offers

Private Boat Trip to Marathonisi, the Keri Caves & Laganas Beach from Sunwave Cruises Zakyntos.
Island Trips Marathonisi (Turtle Island)

14 offers

My Tours glass bottom boat goes to Marathonisi-Island and Keri-Caves.
Half-Day Trips Marathonisi (Turtle Island)

13 offers

Boat Rental (up to 5 people) without Licence in Tsilivi from Sunwave Cruises Zakyntos.
Day Trips Marathonisi (Turtle Island)

13 offers

Boat Trip from Agios Sostis to the Keri Caves & Turtle Island from Traventure Zakynthos.
Caves Boat Trips Marathonisi (Turtle Island)

9 offers

Semi Private Sunset Boat Trip to Cameo, Marathonisi & Mizithres Island from Best of Zante Boats.
Sunset Boat Trips Marathonisi (Turtle Island)

3 offers

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