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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)

37 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.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
Full Glass Bottom Boat Trip to Marathonisi Caves with Turtle Spotting from Rent All Mania Zante.
Just booked
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 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
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
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
Private Boat Trip from Alikanas to Marathonisi & Porto Zorro Beach from Adonis Boat Rentals Zakynthos.NewAdonis 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
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 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 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
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
Private Boat Trip to Marathonisi, the Keri Caves & Laganas Beach from Sunwave Cruises Zakyntos.Sunwave Cruises Zakyntos
Private Boat Trip to Marathonisi, the Keri Caves & Laganas Beach
Sunwave Cruises Zakyntos
Starting from: Tsilivi (Planos)
5 hours
From
400 €
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 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 37 offers

What customers love about boat trips in Keri

5.0
27 reviews
Taxi Boat to Turtle Island from Agios Sostis from Traventure Zakynthos.Traventure ZakynthosTaxi Boat to Turtle Island from Agios Sostis
18 Reviews
Tomas · CoupleGBUnited Kingdom

Great experience. Booked on the morning of through this website - didn't confirm as they weren't open until we arrived but we rocked up about an hour before our arrival so we could grab some breakfast. They checked us in as soon as we arrived. Would say if booking the morning of your trip dont expect a shuttle from your hotel - just make your own way there - less stress and loads of parking on the sea front and up the hill in the car parks (all free).

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
Agnieszka · CouplePLPoland

The trip was very great, good communication with whole team. The boat driver had very good skills and made everything so we could see turtles really close.

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 Keri

Traventure ZakynthosTraventure Zakynthos
185 Reviews
11 Offers
null-null-hero
Free cancellation for all offers
Viktória · Solo travelerSKSlovakia

Amazing 🥰

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
bertrand · FamilyFRFrance

really great - to do absolutely and to do again

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

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

Everything was perfect. Oni was a Perfect perfect host, showed us everything and answered all our questions. We loved it, the ocean was so blue, never seen before.

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

Great all round trip. Takes you to the very beautiful parts of the island. Very enjoyable.

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

Good guide and everything went well :)

Keri: All locations

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

37 offers

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

31 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

Boats in the Water During Sunset Boat Trip to Mizithres & Turtle Island with Wine from Dali Tours Zakynthos.
Beach Boat Trips Keri

22 offers

Boat Rental in Agios Sostis (up to 5 people) - Beginner (25-30 HP).
Private Boat Tours Keri

22 offers

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

19 offers

Glass-Bottom Boat Trip to Keri Caves from Agios Sostis with Turtle Spotting from Happy Days Zante .
Island Trips Keri

16 offers

A picture of a luxurious motor boat during the Private Boat Trip to Turtle Island and Keri Caves with Snorkeling from Mistral Rentals Zakynthos.
Half-Day Trips Keri

15 offers

A turtle swimming under water by turtle island which can be visited during the Boat Rental in Keri (up to 10 People) with Fun@Sea in Zakynthos.
Day Trips Keri

14 offers

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

3 offers

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