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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

20 Offers with the Best Prices 2026
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Popular Options
Locations
Activity
Categories
Included services
Ideal for
Languages
Duration
Full Glass Bottom Boat Trip to Marathonisi Caves with Turtle Spotting from Rent All Mania Zante.NewRent All Mania Zante
Full Glass Bottom Boat Trip to Marathonisi Caves with Turtle Spotting
Rent All Mania Zante
Starting from: Keri
3 hours
Free cancellation
Pickup available
Pickup available
From
60 €
Check availability
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
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
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.
Just booked
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
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
Showing 1 - 16 out of 20 offers

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

4.8
139 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
null-null-hero
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...

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
Marco · CoupleITItaly

They are punctual, kind and super nice!!!

Michael Travel ZakynthosMichael Travel Zakynthos
9 Reviews
5 Offers
Picture of tour in Zakynthos by Michael Travel Zakynthos.
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!

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
Sylvia · FamilyGRGreece

Good service, friendly shiipper

Happy Days ZanteHappy Days Zante
3 Reviews
3 Offers
null-null-hero
Free cancellation for all offers
Instant booking confirmation for all offers
Chris · FamilyGBUnited Kingdom

A great trip, small group, excellent driver.

Marathonisi (Turtle Island): All locations

Full Glass Bottom Boat Trip to Marathonisi Caves with Turtle Spotting from Rent All Mania Zante.
Marathonisi Beach

4 offers

Marathonisi (Turtle Island): Similar activities

Boat Trip to Mizithres & Turtle Island with Turtle Spotting from Traventure Zakynthos.
Beach Boat Trips Marathonisi (Turtle Island)

21 offers

Private Boat Trip to the Keri Caves and the Shipwreck from Traventure Zakynthos.
Private Boat Tours Marathonisi (Turtle Island)

21 offers

Private Boat Trip from Alikanas to Marathonisi & Porto Zorro Beach from Adonis Boat Rentals Zakynthos.
Island Trips Marathonisi (Turtle Island)

15 offers

Turtle Swimming in water During Glass-bottom Boat Trip to Turtle Island & Cameo Island with Turtle Spotting from Dali Tours Zakynthos.
Half-Day Trips Marathonisi (Turtle Island)

15 offers

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

13 offers

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

11 offers

Full Glass Bottom Boat Trip to Marathonisi Caves with Turtle Spotting from Rent All Mania Zante.
Glass-Bottom Boat Trips Marathonisi (Turtle Island)

4 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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