Zakynthos Glass-Bottom Boat: Marine Wonders

Embark on a Zakynthos adventure: cruise Turtle Island, explore Keri Caves, and spot sea turtles through a glass-bottom boat. Book your unforgettable journey now.

Duration: 5 hours
Cancellation: 24 hours
Highlights
  • Laganas - Experience the wonders of marine life and the sea floor through our specially crafted glass-bottom boat, allowing you to connect with nature while staying dry.
  • Keri Caves - Sail along stunning limestone cliffs and immerse yourself in the enchanting electric blue waters of the breathtaking Keri Caves. Accessible only by boat, these…
What's Included
  • Liability Insurance
  • In-vehicle air conditioning
  • Glass-Bottom Boat Ticket
  • Guide/Captain
  • Bottled water
What's Not Included
  • Snacks
Additional Information

Embark on an enchanting adventure across the turquoise waters of Zakynthos aboard our glass-bottom boat, offering a unique glimpse into the island’s vibrant marine life. Whether departing from the picturesque Agios Sostis Harbour or enjoying a convenient hotel pickup, prepare for a day filled with natural wonders and unforgettable experiences. Sail the…

Location
Turtle Spot
Once you reach the small Chapel of Agios Sostis, walk straight for about 20 meters, keeping the chapel on your right. You will find our meeting point ahead. Please wait at the Greek flag, where you’ll see the sign for "Happy Days Zante – Meeting Point."
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.6
(50 Ratings)
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L5027sujessp
Oct 24, 2025
Jess and chrissie zante october 2025 highly recommend! - Myself and my bestie were made to feel so welcome by friendly staff. Beautiful island beautiful tour would highly recommend any of the tours.
Review provided by Tripadvisor
Vacation22289058707
Oct 17, 2025
Nice tour, cozy and professional captain. - We had a very nice morning. What a relief that there were only a small group of us! Paying an extra tenner is more than worth it if I saw the other overcrowded boats. The reception was fine and within a few minutes we were lucky enough to see a turtle. Then we set sail for the caves, there was swimming time and we went on a trip to the turtle island. Alexander is a very knowledgeable captain, friendly and sociable, but also professional and above all very agile with the boat. Incredibly clever with what precision he steers the boat!
Review provided by Tripadvisor
Triciah181
Oct 8, 2025
Turtley enjoyable .... - Coach arrived on time as planned, modern, clean and comfortable. There were seats for 11 passengers which was a good size and opportunity to meet and chat with other tourists. Transfer at port to our boat was well organised and we were soon on our way after being shown the 'lazy' turtle who had stayed behind in the port. I think everyone on our boat got sight of him lifting his head out of the water. Boat captain was very jolly and good humoured. Atmosphere on boat was good... we stopped at Keri caves sufficiently long enough for good photography opportunities and a short break at small pretty cove was included for those who wanted a dip in the blue waters. The last stop was 45 mins at an island beach where we could swim, picnic and chill. All in all a good trip and thoroughly recommend.
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Rebeccauk33
Oct 2, 2025
Amazing experience - Amazing! Captain Denis was a dream - funny and informative made the most of the trip and helped us all get perfect photos. He worked hard to get us turtle sightings and we managed not one but two! Had the perfect length of time to relax on the beach and also had a 20% discount at the food/drink cart on the beach. Boat wasn’t packed and plenty of room. The boat ride was so smooth and the timing of everything was amazing. We did a similar tour in another part of Zante the day before this one (at the same price) and this one was miles better! Highly recommend
Review provided by Tripadvisor
Miss
Oct 2, 2025
Great trip - Our Captain Denis was amazing explaining everything we saw. Went above and beyond to ensure we saw some turtles even though it was out of season, we saw 3.
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Damienbl2186wi
Sep 25, 2025
Great excursion! - A great experience to do with family/friends or even solo. The captain knows how to set the Mood and pay attention to all passengers (even those with reduced mobility). The activities carried out are as recruited in the advertisement. The details of the care were clear and respected. I highly recommend this excursion, value for money at the top.
Review provided by Tripadvisor
Emanuel
Sep 15, 2025
Captain Denis was the best! - The captain was amazing, his name was Denis, he was very funny, very nice, and very informative. He told us everything that is going to happen before it happened. We had a 20 minute swimming stop at Keri Caves, we had an hour on Marathonisi. And most important, we saw a sea turtle, Captain Denis was very informed about how they feel, he knew if it was stressed or not, he kept going around her, but out of her way so she wouldn't feel scared, he told us if it was coming up and kept telling us exactly where it was. Very organized, funny, nice guy and a nice tour!
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Janelleh540
Sep 7, 2025
Special cruise to see turtles and Keri Caves - The cruise yesterday was wonderful with an excellent lady captain who was very skilful navigating the cliffs of the Keri Caves. We were lucky to see a Loggerhead turtle just as we were leaving the dock which was very special. The Keri Caves were spectacular in colour and dimension. Finally Marathonissi or Turle Island was also lovely with many nests on the beach. There are also small boat vendors selling cools drinks and lunch items/snacks. We took the 12noon cruise and were placed on the larger boat with double deck which meant there was lots of space to move and see everything. The other cruise boat was much smaller with the same company. Not sure the difference. The crew was fabulous as well.
Review provided by Tripadvisor
Uzma_m
Oct 10, 2025
Good experience - It was nice tour of some islands and caves. We swam in one location. We saw one turtle though… as it’s off season so disappointed but no one’s fault. The one we did see though… 6boats were circling him for a look. Felt bad but tourists gotta see I guess. The beach we spent time at was ok. Overall ok experience.
Review provided by Viator
Evelyn
Oct 7, 2025
Not very animal friendly - The appreciation is not to the person who carries out the boat trip, but more the masses. Almost 10 boats charging at 1 turtle we eventually found no longer fit in this time. Wouldn't book it so fast anymore. The first stop for swimming was nice. The 2nd at the beach was not necessary by us.
Review provided by Tripadvisor
From $35
up to 15 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).