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Several boats visiting a cave at the shore during a boat trip.
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GRGreeceZakynthos (Zante)Keri

Caves Boat Trips Marathonisi (Turtle Island)

9 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 Zante
Just booked
Best of Zante Boats
Boat Trip to the Keri Caves with Turtle Spotting
Best of Zante Boats
4.8(33)
Starting from: Agios Sostis, Laganas, Kalamaki
3 hours
Free cancellation
Pickup available
4.8(33)
Pickup available
From
10 €
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
4.9(47)
Starting from: Agios Sostis
3 hours
Free cancellation
Pickup available
4.9(47)
Pickup available
From
25 €
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
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
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
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
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
Full Glass Bottom Boat Trip to Marathonisi Caves with Turtle Spotting from Rent All Mania Zante.Rent All Mania Zante
Currently not availableFull 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
View details

Offers available nearby

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

4.9
89 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.

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
33 Reviews
AMBER · Solo travelerGBUnited Kingdom

Great your guide, pick up and drop off service, very easy. Lovely tour

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
197 Reviews
11 Offers
null-null-hero
Free cancellation for all offers
Marjolein · FamilyNLNetherlands

Rented a boat, everything was well arranged. The price is comparable to other providers. Tip: go at 9:00 AM (not in the afternoon). It is even less crowded at the counter in the morning (and on the water too!).

Best of Zante BoatsBest of Zante Boats
135 Reviews
2 Offers
null-null-hero
Free cancellation for all offers
Instant booking confirmation for all offers
AMBER · Solo travelerGBUnited Kingdom

Great your guide, pick up and drop off service, very easy. Lovely tour

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.
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!

Sunwave Cruises ZakyntosSunwave Cruises Zakyntos
6 Reviews
4 Offers
Our boat in the Ionian Sea seen from above.
Alex · CoupleRORomania

Staff was nice

Rent All Mania ZanteRent All Mania Zante
2 Reviews
The Callegari boat of Rent All Mania Zante during a trip to Zakynthos' Blue Caves.
Jessica · FamilyNLNetherlands

Good explanation, they speak good English. They show you where you can and are allowed to sail.

Marathonisi (Turtle Island): All locations

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.
Marathonisi Beach

3 offers

Marathonisi (Turtle Island): Similar activities

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 Marathonisi (Turtle Island)

13 offers

The boat used for the boat rental in Keri with Fun@Sea.
Day Trips Marathonisi (Turtle Island)

13 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.
Boat Trips with Snorkeling Marathonisi (Turtle Island)

12 offers

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

3 offers

Bird's-eye view of the motorboat used in the private boat trip around Zakynthos with turtle spotting with Serene Private Cruises.
Marathonisi (Turtle Island): Boat Trips to Shipwreck Beach

3 offers

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