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

Boat Trips from Agios Sostis to Keri Caves

10 Offers with the Best Prices 2026
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Boat Trip from Agios Sostis to the Keri Caves & Turtle Island from Traventure Zakynthos.
Bestseller
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
Boat Trip to Mizithres & Turtle Island with Turtle Spotting from Traventure Zakynthos.
Bestseller
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
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
My Tours glass bottom boat goes to Marathonisi-Island and Keri-Caves.
Just booked
My Tours Zakynthos
Boat Trip to Marathonisi Island and Keri Caves with Turtle Spotting
My Tours Zakynthos
5.0(9)
Starting from: Agios Sostis
3 hours
Free cancellation
5.0(9)
From
19 €
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.
Just booked
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
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
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
Picture of a girl swimming next to a trutle during the Boat Trip to the Keri Caves with Turtle Spotting with Best of Zante
Bestseller
Best of Zante Boats
Boat Trip to the Keri Caves with Turtle Spotting
Best of Zante Boats
4.8(32)
Starting from: Agios Sostis, Laganas, Kalamaki
3 hours
Free cancellation
Pickup available
4.8(32)
Pickup available
From
10 €
Check availability

Offers available nearby

What customers love about boat trips in Agios Sostis

4.9
144 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
47 Reviews
Valeria ITItaly

beautiful excursion, excellent organization, we booked at the last minute the night before and they managed to find a solution that could accommodate us very quickly

My Tours' boat trip to the Navagio Shipwreck Beach and Blue Caves.My Tours ZakynthosBoat Trip to Navagio Shipwreck Beach and Blue Caves
14 Reviews
Christos · CoupleGBUnited Kingdom

It was really good. They didn't follow the itinerary on point, but we had 3 swimming stops and we went to the shipwreck and blue caves so they delivered on what was promised.

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
Sylvia Schmidt · FamilyDKDenmark

Super experience and a fantastic captain.

Popular Boat Tour Providers in Agios Sostis

Traventure ZakynthosTraventure Zakynthos
193 Reviews
11 Offers
null-null-hero
Free cancellation for all offers
Sylvia · FamilyGRGreece

Small boat, plenty of time to swim, and the skipper did his best to locate the turtles for us.

Best of Zante BoatsBest of Zante Boats
134 Reviews
2 Offers
null-null-hero
Free cancellation for all offers
Instant booking confirmation for all offers
Sarah · CoupleDEGermany

It was a fantastic boat trip at a great price! At first, there was a long queue, and we wondered how it would all work out. But the trip was worth it in no time, and we all had a seat on the boat where we could see everything. The guide was excellent; he turned the boat around so everyone could enjoy the view. We saw three turtles, and then we continued on to stunning natural scenery: turquoise water, caves, and rocky outcrops. It was simply fabulous. Finally, jumping into the crystal-clear water from the boat was a refreshing and amazing experience! For the last 20 minutes, we went to the beach, where we could see the turtle nesting sites in the distance. For those of us who hadn't dared to jump in the water, like me, this was a great opportunity to hop into the beautiful water! Recommendation: bring plenty of water and, especially for children, food! I'd love to do it again!

My Tours ZakynthosMy Tours Zakynthos
38 Reviews
5 Offers
One of the boats of My Tours Zakynthos navigating in the Ionian Sea during a boat trip.
Free cancellation for all offers
Christos · CoupleGBUnited Kingdom

It was really good. They didn't follow the itinerary on point, but we had 3 swimming stops and we went to the shipwreck and blue caves so they delivered on what was promised.

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.

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!

Trending boat trips in Agios Sostis

Boat Rental in Agios Sostis (up to 5 people) - Beginner (25-30 HP).Traventure ZakynthosBoat Rental in Agios Sostis (up to 5 people) - Beginner (25-30 HP)
Bestseller
Free cancellation
From80 €
Boat Rental in Agios Sostis (up to 6 people) - Advanced (30-40 HP) from Traventure Zakynthos.Traventure ZakynthosBoat Rental in Agios Sostis (up to 6 people) - Advanced (30-40 HP)
Bestseller
Free cancellation
From90 €
Taxi Boat to Turtle Island from Agios Sostis from Traventure Zakynthos.Traventure ZakynthosTaxi Boat to Turtle Island from Agios Sostis
Bestseller
Free cancellation
From10 €
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