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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

21 Offers with the Best Prices 2025/2026
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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
Hotel pickup available
Hotel 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 ZanteBest 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
Hotel pickup available
4.8(30)
Hotel 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, Laganas, Kalamaki
4 hours
Free cancellation
Hotel pickup available
4.8(30)
Hotel 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
4.8(43)
Starting from: Agios Sostis, Laganas, Kalamaki
3 hours
Free cancellation
Hotel pickup available
4.8(43)
Hotel pickup available
From
25 €
Check availability
Boat Trips around the Island of Zakynthos with Swimming from Dimosthenis K Zakynthos.Dimosthenis K Zakynthos
Boat Trip around the Island of Zakynthos to Shipwreck Beach with Swimming
Dimosthenis K Zakynthos
Starting from: Zakynthos (Zante)
8 hours
Free cancellation
From
20 €
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
Hotel pickup available
Hotel 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(3)
Starting from: Argasi
3 hours
5.0(3)
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
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
Minivan & Boat Trip to Turtle Island and Keri Caves with Turtle Spotting
Michael Travel Zakynthos
5.0(1)
Starting from: Argasi
6 hours
5.0(1)
From
55 €
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
Hotel pickup available
Hotel 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
Hotel pickup available
5.0(1)
Hotel 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: Laganas, Agios Sostis, Kalamaki
3 - 5 hours
Free cancellation
Hotel pickup available
5.0(21)
Hotel 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, Laganas, Kalamaki
6 hours
Free cancellation
Hotel pickup available
5.0(1)
Hotel 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
Showing 1 - 16 out of 21 offers

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

4.8
134 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
43 Reviews
Birgit · Solo travelerDEGermany

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

Turtle Spotting Boat Trip from Agios Sostis to Turtle Island from Traventure Zakynthos.Traventure ZakynthosTurtle Spotting Boat Trip from Agios Sostis to Turtle Island
10 Reviews
Kick · CoupleNLNetherlands

"Good chance of spotting turtles and as much time at the beach of Marathonisi as you’d like."

My Tours glass bottom boat goes to Marathonisi-Island and Keri-Caves.My Tours ZakynthosBoat Trip to Marathonisi Island and Keri Caves with Turtle Spotting
9 Reviews
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"

Popular Boat Tour Providers in Marathonisi (Turtle Island)

Traventure ZakynthosTraventure Zakynthos
181 Reviews
11 Offers
null-null-hero
Free cancellation for all offers
Dirk · FamilyNLNetherlands

"The price was reasonable at €10.00 per person. Since the island was incredibly busy, we opted for a short visit. A text message was enough to get picked up again 10 minutes later. Other boats have a more extensive program with sightseeing stops and swimming stops. If you want more freedom, the boat taxi is a great option."

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
Sylvia Schmidt · FamilyDKDenmark

"Super experience and a fantastic captain."

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

"Good experience for good price!"

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

"Super nice boat there is nothing for sale so bring your own food and drinks. Nice sailing no stories but stopping at the right points. Just push through so that we would be picked up from the hotel, they first acted as if they did not know that the transfer was included, had a great day"

Happy Days ZanteHappy Days Zante
3 Reviews
3 Offers
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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!"

Marathonisi (Turtle Island): All locations

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

5 offers

Marathonisi (Turtle Island): Similar activities

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

23 offers

Private Boat Trip to the Turtle Island & Keri Caves with Turtle Spotting from My Local Sea Zakynthos.
Beach Boat Trips Marathonisi (Turtle Island)

22 offers

A view of Navagio Shipwreck Beach, where My Tours stops for swimming during the boat tour around Zakynthos.
Day Trips Marathonisi (Turtle Island)

15 offers

Boat with glass-bottom from VIP Turtle Spotting Boat Trip to Turtle Island and Keri Caves from Michael Travel Zakynthos.
Half-Day Trips Marathonisi (Turtle Island)

15 offers

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

15 offers

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.
Caves Boat Trips Marathonisi (Turtle Island)

11 offers

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

4 offers

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

4 offers

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