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
8G92PV87+2M3
Once you face the small Chapel, on your left side you'll see our meeting point. Please wait at the Greek Flag where’s a sign of 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
(41 Ratings)
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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
T3397ckcintiar
Sep 3, 2025
Just amazing - This was an amazing experience! We managed to see a turtle and also learned a bit about them. Our captain for the day, Denis, was an absolute star!! He was funny and would answer any Questions we had. I would definitely recommend this!! You won’t be disappointed!
Review provided by Tripadvisor
Claudia_m
Aug 30, 2025
Wonderful caves and turtles! - Tour of the beautiful Keri Caves and Turtle Island. We were lucky enough to see a turtle emerge from the water, a super exciting experience! Recommended!
Review provided by Viator
Jennapm6918hq
Aug 27, 2025
Fantastic tour with a very helpful guide - We as a family loved this tour. We selected to be picked up from our hotel and it was a completely hassle free transfer, our driver gave us some info on the villages we passed on the way to the meeting point and we go there early enough to do a bit of extra exploring. On the boat we had Dennis as our Captain, who along with being very friendly and knowledgeable was also very funny. We spotted a turtle almost straight away and Dennis made sure everyone on the boat got a chance to see it, switching the boats direction so both sides got a clear view. We then moved onto the caves, a swim spot in the deep water and over to turtle island for an hours stop and swim. I would definitely recommend this tour to anyone visiting Zakynthos. You do not have to swim, you can stay on the boat for the first swim spot and just chillout on the beach for the 2nd if you want to or make the most of both swimming spots.
Review provided by Tripadvisor
Monicag
Aug 27, 2025
Super good we saw a... - Super well we saw a turtle and the boy who was on the boat was very friendly offered us water and helped us recommend it and we went to a very nice island
Review provided by Viator
Gavin_t
Aug 26, 2025
Fantastic - The best captain ever!!! Fun, great with the kids, knowledgable, just perfect! We had time to swim in amazing places and we spot a huge turtle. We will come back again for sure. Thank you soooooo much, you made our experience in this beautiful island even better.
Review provided by Viator
Tourist46379850295
Aug 25, 2025
Fantastic half day trip - The trip was fantastic. Dennis the captain was brilliant. He was helpful, informative and so entertaining. Thank you for a lovely day.
Review provided by Tripadvisor
Valeriachiarob
Aug 25, 2025
Beautiful experience - It was a beautiful experience! U can see the turtles and the beautiful places around they live! I adore the color of the sea in this caves and see from the see Marathonisi (or Turtle Island). It was emotionally and the captain Dennis is very funny and kind ! The driver Spyros was good , he gets and leaves me where I requested. Is a good driver very kind , he tells to me all the information I ask and I needs for the last day at the island! Thank u so much. If I want come i’ll be choose u for others experience.
Review provided by Tripadvisor
Miroslav_d
Sep 4, 2025
Zakynthos "half day tour" - Immediately in the harbor we saw 1 turtle for a brief moment which was nothing special, then we proceded past Cameo island to Keri caves for only 20 min of swimming, from there we went to the last stop of swimming to turtle Island for 1 hour and back to harbor, overall I was a bit disappointed. I can't say I got my money's worth. And all of this was just 3 hours from 12 to 15pm.
Review provided by Viator
Ilja
Aug 22, 2025
It sucks. Boat did not have a transparent bottom as described. It was a mega group, at least t double the small group me - Worthless: no transparent bottom. Many more people. No small group and a guide who says nothing. Would definitely not recommend
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).