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Several boats near the coast during a boat trip to Marathonisi Island.
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GRGreeceIonian IslandsZakynthos (Zante)

Boat Trips from Keri to Turtle Island (Marathonisi)

36 Offers with the Best Prices 2026 - CheckYeti
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Popular Options
Locations
Activity
Categories
Included services
Ideal for
Languages
Duration
Private Boat Trip to Turtle Island and the Mizithres Rocks from Traventure Zakynthos.
Just booked
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
330 €
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
Turtle Swimming in water During Glass-bottom Boat Trip to Turtle Island & Cameo Island with Turtle Spotting from Dali Tours Zakynthos.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
Boats in the Water During Sunset Boat Trip to Mizithres & Turtle Island with Wine from Dali Tours Zakynthos.Dali Tours Zakynthos
Sunset Boat Trip to Mizithres & Turtle Island with Wine
Dali Tours Zakynthos
Starting from: Zakynthos (Zante)
4 hours
Free cancellation
Pickup available
Pickup available
From
40 €
Check availability
Glass-Bottom Boat Trip to Keri Caves from Agios Sostis with Turtle Spotting from Happy Days Zante .Happy Days Zante
Glass-Bottom Boat Trip to Keri Caves from Agios Sostis with Turtle Spotting
Happy Days Zante
Starting from: Alikanas, Kalamaki, Agios Sostis
5 hours
Free cancellation
Pickup available
Pickup available
From
35 €
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
Private Boat Trip to Marathonisi, the Keri Caves & Laganas Beach from Sunwave Cruises Zakyntos.Sunwave Cruises Zakyntos
Private Full-day Boat Trip around Zakynthos with Snorkeling & Turtle Spotting
Sunwave Cruises Zakyntos
Starting from: Tsilivi (Planos)
7 hours
From
580 €
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
Private Boat Trip from Alikanas to Marathonisi & Porto Zorro Beach from Adonis Boat Rentals Zakynthos.Adonis Boat Rentals Zakynthos
Private Boat Trip from Alikanas to Marathonisi & Porto Zorro Beach
Adonis Boat Rentals Zakynthos
Starting from: Alikanas
6 hours
Free cancellation
From
550 €
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
630 €
Check availability
Private Boat Trip all around Zakynthos from Agios Sostis from Traventure Zakynthos.Traventure Zakynthos
Private Boat Trip all around Zakynthos from Agios Sostis
Traventure Zakynthos
Starting from: Agios Sostis
7 hours
Free cancellation
Pickup available
Pickup available
From
1100 €
Check availability
Turtle spotted during the RIB Boat Trip to Marathonisi and Keri Caves with Turtle Spotting from Explore Zakynthos.
Just booked
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
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
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
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
Showing 1 - 16 out of 36 offers

What customers love about boat trips in Keri

5.0
32 reviews
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
46 Reviews
Nadine FRFrance

Great trip!

Taxi Boat to Turtle Island from Agios Sostis from Traventure Zakynthos.Traventure ZakynthosTaxi Boat to Turtle Island from Agios Sostis
19 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!

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 BoatsBoat Trip to the Keri Caves with Turtle Spotting
32 Reviews
Wahan · Group of friendsNLNetherlands

Value for the price is really good, and had some nice freedom to swim and relax aswell. Do recommend

Popular Boat Tour Providers in Keri

Traventure ZakynthosTraventure Zakynthos
191 Reviews
11 Offers
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Free cancellation for all offers
Bram · CoupleNLNetherlands

Great guys and easy to rent a boat. We had a almost new boat with enough power and easy to manage.

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
Thomas · FamilyGRGreece

The landscape is just sublime, thanks to Panagiotis the captain who did everything to make the most of it! A great captain and a great guy! I recommend to everyone. Everything is taken care of, masks, food, drinks, you don't have to worry about anything. Thanks again !

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
Christian · CoupleDEGermany

The scenery was amazing. We even saw a turtle. The skipper was very experienced and had great control of the boat. Top-notch.

Sunwave Cruises ZakyntosSunwave Cruises Zakyntos
4 Reviews
4 Offers
Our boat in the Ionian Sea seen from above.
Umberto · FamilyITItaly

Seriousness and availability You always have someone who calls you and organizes everything You don't have to think about anything They support you and anticipate you step by step

Happy Days ZanteHappy Days Zante
3 Reviews
3 Offers
null-null-hero
Free cancellation for all offers
Instant booking confirmation for all offers
Connie · FamilyATAustria

I highly recommend Happy Days Zante. Great value for money, the company organises to pick you up from a convenient location in a small, clean charter bus. The boat was not over crowded and the sites visited by boat were amazing. This trip didn’t feel overly touristy, perfect for those who want to enjoy the sites without the big crowds. The stop over at the olive tree was also beautiful. We were then taken back to the original pick up spot. Amazing day!

Keri: All locations

Picture of a girl swimming next to a trutle during the Boat Trip to the Keri Caves with Turtle Spotting with Best of Zante
Marathonisi (Turtle Island)

36 offers

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

30 offers

Boat Trip to Mizithres & Turtle Island with Turtle Spotting from Traventure Zakynthos.
Mizithres

15 offers

The boat used for the boat rental in Keri with Fun@Sea.
Limni Keri (Keri Beach)

3 offers

Keri: Similar activities

Boat Rental in Agios Sostis (up to 6 people) - Advanced (30-40 HP) from Traventure Zakynthos.
Private Boat Tours Keri

22 offers

Boat Trip to Mizithres & Turtle Island with Turtle Spotting from Traventure Zakynthos.
Beach Boat Trips Keri

22 offers

Private Boat Trip to the National Marine Park of Zakynthos from My Local Sea Zakynthos.
Turtle Spotting Keri

18 offers

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

16 offers

Private Boat Trip from Alikanas to Marathonisi & Porto Zorro Beach from Adonis Boat Rentals Zakynthos.
Day Trips Keri

14 offers

Private Boat Trip to Turtle Island and the Mizithres Rocks from Traventure Zakynthos.
Half-Day Trips Keri

14 offers

Turtle spotted during the RIB Boat Trip to Marathonisi and Keri Caves with Turtle Spotting from Explore Zakynthos.
Sunset Boat Trips Keri

3 offers

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