Zakynthos: Turtle Spotting, Marathonísi & Keri Caves Cruise

If you’re seeking an easy-going, nature-focused adventure around Zakynthos, the Turtle Spotting, Marathonísi & Keri Caves Cruise might be just the ticket. This 3.5-hour trip promises a chance to see the iconic loggerhead sea turtles in their natural environment, explore stunning sea caves, and enjoy a couple of refreshing swims—all aboard an eco-conscious glass-bottom boat.

What makes this tour appealing is its mix of wildlife encounters, scenic views, and relaxed stops. You’ll love the intimate boat experience, the chance to spot turtles without disturbing their habitat, and the stunning rock formations of Keri Caves. The inclusion of hotel transfers adds to the convenience, making it accessible even if you’re not staying right at the port.

A possible consideration is the modest size of the boat, which some might find a bit crowded during peak hours or if you prefer more space to stretch out. While the trip is primarily about nature and scenery, those expecting a more in-depth commentary or a private experience might find it slightly lacking.

This tour suits travelers who want a genuine, family-friendly experience that combines wildlife, scenic beauty, and light adventure without breaking the bank. It’s ideal for those who value environmental friendliness and relaxed exploration.

Good To Know

• Wildlife Encounters: Chance to see loggerhead turtles in their natural habitat.
• Scenic Stops: Includes swimming at Marathonísi Island and Keri Caves.
• Eco-Friendly: Uses a glass-bottom vessel designed to minimize impact on marine life.
• Convenient Transfers: Hotel pick-up and drop-off included from multiple Zakynthos locations.
• Short & Sweet: Perfect for a half-day adventure with flexible start times.
• Limited Food & Beverage Options: Bring your own snacks and drinks for the trip.

You can check if your dates are available here:

The Full Experience: What to Expect

Starting Point & Logistics

The cruise departs from Ag Sostis port, near the Cameo Bridge, with prominent yellow flags and the recognizable yellow glass-bottom boat branded with Zante Sun Travel. To get the most out of your experience, arriving about 20 minutes early is recommended, giving time to settle in and perhaps snap a few photos of the boat’s sleek design.

The tour operates from midday to late afternoon, with options around 12:00 or 15:00, and sometimes at 18:00, depending on the day. The transportation is included, covering key areas like Laganas, Kalamaki, Ag Sostis, Agrilia, Lithakia, Mouzaki, Keri, and Argassi. This makes it a great option if you’re based in any of these spots or nearby.

The Wildlife Spotting Segment

The main highlight is the turtle spotting. The tour takes you over the waters where loggerhead turtles (Caretta caretta) are known to frequent. Several reviewers appreciated the chance to see these enchanting creatures—one guest even mentioned the emotional impact of witnessing a hatchling make its way to the ocean.

While some reviews note only a few turtles were seen, the possibility of encountering these majestic animals in their natural habitat remains a highlight of the trip. As one reviewer put it, “It was a rare and humbling sight that will stay with you forever.” Guides like Captain Dennis are credited for making the experience enjoyable, often adding friendly commentary and keeping the mood light.

Marathonísi Island (Turtle Island)

After the turtle spotting, the boat heads to Marathonísi, affectionately called “Turtle Island” because of its shape and nesting importance. It’s a well-loved stop for swimming and relaxing on the sandy beaches. The clear waters are perfect for a leisurely dip—some reports mention jumping right from the boat into the vivid blue, while others appreciated the calm, untouched atmosphere.

This island is not just about swimming; it’s also a nesting site for sea turtles, adding a layer of significance to your visit. Expect a laid-back environment with natural beauty and minimal commercial development. The stops here typically last around 50 minutes, giving enough time to float, sunbathe, or explore.

More Great Thing To Do Nearby

Keri Caves

The next stop is the Keri Caves, a true highlight for lovers of dramatic scenery and hidden coves. These sea caves are carved by years of waves and wind, creating a spectacle of towering rocks and reflecting waters. Swimmers can go through the caves or simply admire the formations from the boat.

Several reviews mention the caves as a breathtaking part of the trip, with one reviewer noting that they managed to enter a cave with the boat, adding to the adventure. This stretch of the trip is especially popular for capturing photos of the rock formations and spotting the reflections dancing on the water’s surface.

The Return & Overall Atmosphere

After about 3 hours, the boat returns to the starting point, often around 15:00 or 18:00. The crew is generally praised for their friendliness and helpfulness, making the trip feel comfortable and engaging. Some guests mention the smaller boat size as a plus, with fewer people and more opportunities to swim or see wildlife.

Additional Details & Tips

• What to bring: Hat, towel, camera, snacks, and drinks. Food and beverages are not included, so pack accordingly.
• What not to bring: Pets and large luggage are not permitted on the boat.
• Suitability: Not recommended for wheelchair users, but accessible for most other travelers.
• Safety: All boats are certified and designed to protect marine life, so you can feel confident with the eco-friendly setup.

Authentic Insights from Reviews

Guests consistently appreciate the knowledgeable guides, with one mentioning Captain Dennis as making the experience memorable. Several reviews highlight the stunning views, with many capturing photos of caves and turquoise waters that are truly postcard-worthy.

While some were slightly disappointed by the limited turtle sightings—only seeing one or two—most felt that the overall experience was worthwhile, especially given the competitive price point. One traveler shared that seeing a baby turtle hatch was a particularly memorable moment, emphasizing how genuine encounters enhance the trip’s value.

The swimming stops at beaches like Oasis Beach and Marathonísi are described as relaxing highlights, with some guests noting the water is incredibly clear and perfect for jumping right in. However, overcrowding at certain beaches can be a concern—be prepared for some busy moments during peak seasons.

Pricing & Value

At a price point that generally offers good value, the tour combines wildlife viewing, scenic exploration, and comfortable transportation. Considering the inclusion of hotel pick-up and drop-off, and the chance to see iconic natural sites, it’s a bargain for those wanting a half-day adventure without an all-day commitment.

The boat’s eco-friendly design and smaller size add extra value for environmentally conscious travelers. While food isn’t included, bringing your own snacks ensures you’re prepared for the trip’s duration.

Who Should Book This Tour?

Nature lovers will appreciate the chance to observe sea turtles and explore sea caves. Families and first-time visitors will find it manageable and engaging, with enough time to relax and take photos. More experienced or adventure-seeking travelers might prefer longer or private options, but for a relaxed, scenic, wildlife-focused trip, this tour hits the mark.

If you’re looking for a budget-friendly, authentic experience that highlights the natural beauty of Zakynthos, this cruise offers plenty of memorable moments. Just keep in mind it’s a group experience, so if privacy or extensive commentary are your priorities, you might want to explore other options.

FAQ

Is hotel pick-up included?
Yes, the tour offers hotel pick-up and drop-off from several key locations across Zakynthos.

How long does the trip last?
The cruise lasts approximately 3.5 hours, with departure times typically around midday and early afternoon.

Can I see turtles?
While sightings aren’t guaranteed, the waters are one of the best spots in the Mediterranean to encounter loggerhead turtles. Guests have reported seeing them, sometimes even hatchlings.

Are food and drinks provided?
No, food and drinks are not included, so bring your own snacks and beverages.

Is the boat suitable for children?
Yes, it’s suitable for most children, but the trip isn’t recommended for wheelchair users.

What should I bring?
A hat, towel, camera, snacks, and drinks are recommended. Remember, large luggage isn’t permitted onboard.

What is the boat like?
It’s a spacious, certified, eco-friendly glass-bottom vessel, with a smaller size that enhances opportunities to see wildlife and enjoy the scenery.

Are there any additional fees?
No, the price covers the cruise, transportation, and all the included stops.

Can I cancel the booking?
Yes, free cancellation is available up to 24 hours before the trip.

Is there a guide onboard?
Yes, guides are present to assist, provide commentary, and ensure a smooth experience.

Final Thoughts

This Zakynthos boat tour offers a charming mix of wildlife encounters, scenic beauty, and relaxing swims suited for travelers who want a taste of authentic Greek nature. Its eco-friendly approach and knowledgeable crew make it a responsible choice, while the stops at Marathonísi and Keri Caves provide a variety of gorgeous views and photo opportunities.

Perfect for families, first-time visitors, or anyone wanting a gentle adventure in Zakynthos’ stunning waters, it balances price, comfort, and experience well. While sightings of turtles might be variable, the chance to see them in their habitat adds a special touch that many travelers treasure.

If you’re after a well-organized, friendly, and scenic half-day trip that respects the environment and delivers unforgettable moments, this cruise should definitely be on your list.

You can check if your dates are available here: