Zakynthos

15 Best Zakynthos Turtle Cruises

The loggerhead cruises in the marine park: glass-bottom boats over the grass beds, Marathonisi’s turtle-shaped islet and Keri’s caves on the loop. Caretta caretta nests on these beaches; the licensed boats keep the legal distance and still deliver.

1.Zakynthos: Turtle Spotting Cruise with Glass-Bottom Boat

Experience Zakynthos on a 3-hour glass-bottom boat cruise—spot turtles, explore caves, swim in crystal waters, and enjoy stunning scenery with expert guides.

Most Popular★ 4.5

“The highlight of our holiday in Zakynthos. Captain Dennis was very funny and very knowledgeable of how to find the turtles and where to look, giving everyone a chance to see. The swimming spot was incredible with a gorgeous view and Turtle Island was a…”

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2.Zakynthos: Turtles, Marathonisi & Keri Caves Speedboat Tour

Discover Zakynthos' highlights on a 2.5-hour speedboat tour, including turtle sightings, caves, and stunning beaches, with expert guides.

★ 4.5

“We had great time, I think his name was Christopher he was kind, fun and caring individual. We went yesterday (October end of season month) Mediterranean sea had quite persistent waves and was quite rough as we went towards Keri caves 1 : he was…”

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3.Zakynthos: Turtle Island & Keri Caves Glass-Bottom Boat Tour

Discover Zakynthos’ Turtle Island and Keri Caves on a glass-bottom boat tour. Spot turtles, explore caves, and enjoy scenic views for a memorable day.

★ 4.6

“Guide was hilarious made us laugh all through the trip, explained everything to us before and at each stop, glass bottom wasn’t much though, when sea turtle came up he turned the boat so each side of the boat got a clear look, I got…”

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4.Zakynthos: Marathonisi, Cameo Island and Keri Caves Tour

Discover Zakynthos with a 5-hour tour exploring Cameo Island, Marathonisi, and Keri Caves. Swim, spot turtles, and taste local olive oils on this balanced adventure.

★ 4.2

“Well organised with clear joining instructions for the tour. Saw a turtle almost straight away when on the boat and the captain was informative and helpful. Really enjoyed the whole trip.”

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5.Zakynthos: Turtle Spotting, Marathonísi & Keri Caves Cruise

Discover Zakynthos on a 3.5-hour eco-friendly cruise with turtle spotting, swimming at Marathonisi and Keri Caves, perfect for nature lovers and adventure seekers.

★ 4.2

“Turtle spotting in the port, only two turttles, but beautiful, Keri caves with break for swimming and Marathonisi island with break for swimming”

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7.Zakynthos: Keri Lake Romantic Sunset & Myzithres Viewpoint

Experience a romantic sunset at Myzithres, explore Keri Lake’s peaceful beach, and enjoy stunning views with a knowledgeable guide on this affordable Zakynthos tour.

★ 4.6

“Wow! is how I'd describe it. Fantastic trip, well worth it. advertised as 'romantic' but still suitable for singles. Be advised, it is a bit of an uphill walk and coming back, the sun has obviously descended. If you're unsteady on your feet, maybe swerve…”

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8.Laganas Zakynthos: Marathonissi, Keri Caves and Turtles Spotting

Discover Zakynthos with this 3-hour boat tour from Laganas, spotting turtles, exploring caves, and relaxing on deserted beaches. Great value and authentic sights.

★ 4.0

“well organised, the turtles were not really chased, morning tour recommendable because not so many boots there and shade spots on the island. tough. millions of ppl on the isalnd then and around the caves. touristic experience.”

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10.Cruise to turtle’s island and caves with a glass bottom boat

Discover Zakynthos' Turtle Island and caves on a glass-bottom boat tour. Expect wildlife sightings, snorkeling, and scenic caves—perfect for nature lovers.

★ 4.0

“Excellent value for money and small group Guide had excellent knowledge and very friendly. Door to to service. Would highly recommend this trip”

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11.Zakynthos Half Day Tour to the Turtle Island, Cameo & Keri Caves

Discover Zakynthos' highlights on a half-day tour—turtle spotting, caves, and olive oil tasting—perfect for travelers seeking authentic local scenery.

★ 4.0

“Great tour! We had a lot of fun on this tour. The captain made sure everyone had seen a turtle before we moved on, which was really nice, BUT... this does mean that some people had a great view and some people just caught a…”

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12.Turtle Spotting Cruise in Zakynthos

Discover the wildlife and scenic beauty of Zakynthos on this 4-hour turtle spotting cruise, including stops at Keri Caves and Turtle Island, with hotel pickup.

★ 3.5

“I would defiantly recommend this trip, not to busy or rushed. Time to spot the turtles then off to the coves for 2 swim stops in beautiful surroundings. Then head back with views of the coast. Tour guide was really nice to.”

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13.Caretta – Caretta Turtle Trip (Boat Trip)

Discover Zakynthos’ treasures on a 3-hour boat tour spotting Caretta turtles, swimming at Marathonisi, and exploring stunning caves—all from a small group.

★ 4.5

“Overall, the company delivered on what the description stated. We saw a turtle, went for a swim, spent about an hour on the beach at turtle island, and passed by Cameo island. Also went to the Keri caves which wasn't on the description. Not a…”

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14.3 Hours Marathonissi Island Tour, Keri Caves and Turtles Spotting

Explore Zakynthos on a 3-hour boat tour visiting Marathonissi Island, Keri Caves, and spotting sea turtles in their natural habitat for an authentic Greek adventure.

★ 4.0

“Belle le grotte di Keri e le spiagge vicine. L'isola di Maratonissi è una tappa insignificante. Non c'è nulla di interessante. Hai 1 ora per mangiare e bere dalle barche dei venditori ambulanti. Credo che sia solo qs il motivo della sosta sull'isola. È preferibile…”

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15.Zakynthos Half Day swimming tour to Turtle island and keri caves

Discover Zakynthos' top sights on this half-day boat tour, including Turtle Island, Keri Caves, and Cameo Island, with options for private or small-group adventures.

★ 4.5

“This trip was amazing. Our ship had a tender problem in port and we were an hour and a half late. The company not only honored our excursion, they sent a boat to give us a private tour. Alexander was an amazing tour guide. We…”

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A shipwreck on the beach and turtles in the bay.