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Enjoy a 3-hour glass bottom boat tour in Zakynthos, Greece, to see sea turtles, explore Keri Caves, and experience crystal-clear waters with expert guides.

A 3-hour glass bottom boat cruise in Zakynthos offers an exciting way to explore the island’s underwater and coastal beauty without getting wet. Departing from centrally located spots, this tour combines marine life spotting, cave visits, and relaxing stops at some of the island’s most picturesque locations. The experience is led by an experienced captain who keeps the trip lively and informative, making it ideal for those eager for both adventure and education.
The tour is tailored for travelers who want a family-friendly outing that’s easy to access, with hotel transfers included and a skip-the-line ticket system. While the boat is not suitable for wheelchair users, it offers crystal-clear waters, close-up turtle sightings, and a chance to snorkel and swim at selected stops. It’s a great choice for anyone looking to see Zakynthos’ most beautiful spots in just a few hours.
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This glass boat cruise departs from nine different pick-up points across Zakynthos, including Argassi, Alikanas, Volimes, Vasilikos, Planos, Alykes, Kalamaki, Zakinthos, and Laganas. The many pick-up options make it straightforward to join the tour without extra travel. Pick-ups are arranged via a van transfer, which takes about 20 minutes before the boat trip begins.
The hotel pickup service ensures a comfortable start, with guests asked to wait in their hotel lobby for collection. After the cruise, the tour provides return transfers to the original pick-up points, offering a hassle-free experience. The flexible scheduling and included transport make this tour accessible and convenient for most visitors.

The first major stop on the boat trip takes guests to Agios Sostis, an area renowned for its crystal-clear waters and popularity among visitors. Here, travelers can see the most beautiful side of Zakynthos, with the waters offering perfect conditions for snorkeling and swimming. The guide explains the significance of this spot, highlighting its natural beauty and the high volume of visitors it attracts.
This stop also provides an excellent opportunity to capture photos of the landscape and enjoy a relaxing break. The calm waters and scenic backdrop make Agios Sostis an ideal first stop, setting a leisurely tone for the rest of the tour.

One of the tour’s main attractions is a visit to the Keri Caves, a series of impressive rock formations along the coast. Guests get about 20 minutes here to admire the caves, take refreshing dips in the crystal-clear waters, and marvel at the natural arches and formations.
The guide leads guests around the caves, providing insights into their formation and history. This stop offers plenty of opportunities for snorkeling and photography, with the bright waters making it easy to spot marine life just beneath the surface. The scenic caves and their surroundings are a highlight that showcases Zakynthos’ rugged coastline.
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A special feature of this cruise is the chance to see sea turtles swimming in their natural habitat. The vessel heads toward Marathonisi, a small island also known as Turtle Island, where turtles nest and feed. Guests typically spend about an hour here, soaking in the serene beauty of the bay.
The guide’s expertise helps in spotting these gentle creatures, and if luck is on your side, you might get a close view of a turtle gliding beneath the boat. This aspect of the tour truly elevates the experience, offering a rare glimpse of marine wildlife in the wild.

During the cruise, there is a 20-minute stop at the hot waters near the Keri Caves. Here, guests can take a quick dip in the warm waters, which are renowned for their soothing qualities. This stop provides a refreshing break and a chance to relax before moving on to the next scenic location.
The natural warmth of the water adds a unique element to the trip, combining marine exploration with a brief thermal relaxation. It’s a perfect opportunity for travelers seeking both sight-seeing and some gentle pampering.
The 3-hour cruise includes ample time at Agios Sostis for snorkeling and swimming in the clear waters. Guests are encouraged to bring swimwear, towels, sunglasses, and sun hats to make the most of this relaxing stop.
The calm and inviting waters here allow for easy snorkeling to observe marine life close to the surface. The guide facilitates a fun and safe environment, making it suitable even for those new to snorkeling. This stop is ideal for families and anyone wanting a laid-back experience surrounded by natural beauty.
The boat itself features a transparent floor, giving passengers an unparalleled view of the underwater world while staying dry. This design means you can see sea turtles, fish, and other marine creatures glide beneath your feet without needing to snorkel.
The vessel’s expert captain ensures smooth sailing and entertaining narration throughout the trip. Kim’s review highlights the guide’s accommodation and the close encounter with a turtle, emphasizing how the glass bottom enhances the overall experience. The vessel’s design combines comfort with educational value, making the cruise accessible and engaging for all.

This tour lasts approximately 3 hours, with availability based on the day. Guests can reserve now and pay later, providing flexibility to adjust travel plans. The tour includes hotel transfers, so there’s no need to worry about finding a meeting point.
Participants should bring sunglasses, sun hats, swimwear, and towels for the stops. The tour is conducted in English and Greek, with a live guide leading the way. Notably, the activity is not suitable for wheelchair users due to the vessel’s access requirements.
This glass bottom boat cruise offers a balanced mix of wildlife encounters, scenic views, and relaxation. The experienced captain and well-organized itinerary ensure a smooth and enjoyable experience. The inclusion of hotel transfers makes it a convenient option for travelers staying in Zakynthos.
The highlight remains the chance to spot sea turtles and see crystal-clear waters in multiple locations, with the Keri Caves and Marathonisi providing some of the most memorable moments. While the tour isn’t suitable for everyone, it’s a fantastic choice for families and nature enthusiasts eager to enjoy Zakynthos’ marine environment without strenuous activity.
For those seeking a relaxed yet enriching day on the water, this 3-hour cruise is a practical and scenic option. The expert guide, comfortable vessel, and well-planned stops make for a seamless experience. The tour’s focus on marine life, especially sea turtles, gives it a special appeal for wildlife lovers.
Though it doesn’t cater to wheelchair users and requires some basic swimming ability for the snorkeling stops, it remains a great introduction to Zakynthos’ stunning coastline and marine ecosystem. The value for money and easy booking options further add to its attractiveness for travelers wanting a memorable highlight of their trip.
“Wonderful experience. My guide was very accommodating and adapted the schedule to enable me to enjoy at its maximum this experience. I saw a turtle…”
Is this tour suitable for children?
Yes, the tour is family-friendly, especially since it involves calm waters and offers opportunities for snorkeling and swimming. However, children should be comfortable around boats and water.
What should I bring for the cruise?
Guests should bring sunglasses, a sun hat, swimwear, and a towel. These items help make the stops more enjoyable and comfortable.
Can I see sea turtles from the boat?
Yes, the guide’s expertise increases the chances of spotting sea turtles swimming naturally near Marathonisi. Close encounters are possible but not guaranteed.
Is the vessel accessible for people with mobility issues?
No, the boat is not suitable for wheelchair users due to access limitations.
How long is the stop at the Keri Caves?
The stop at the Keri Caves lasts about 20 minutes, giving enough time for sightseeing, snorkeling, and photos.
Can I cancel the tour if my plans change?
Yes, you can cancel up to 24 hours in advance for a full refund, offering flexibility if needed.