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Explore Zakynthos with this 3-hour boat tour visiting Marathonissi Island, Keri Caves, and turtle spotting. An affordable way to enjoy sea caves and marine life.

This 3-hour boat tour offers a compact yet engaging look at some of Zakynthos’s most iconic marine sights. For $29.58 per person, travelers get a chance to explore Marathonissi Island, Keri Caves, and the Laganas Bay, with opportunities to see loggerhead sea turtles in their natural habitat. The tour departs from Laganas at 1:00 pm and operates with a maximum group size of 23 travelers, ensuring an intimate experience.
While the tour covers notable highlights like sea caves and turtle spotting, it’s important to note some mixed reviews regarding organization. The focus remains on providing a cost-effective trip that suits those eager to enjoy Zakynthos’s marine beauty without a lengthy commitment.
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The tour begins at a meeting point in Laganas, specifically at 8G92PV78+X2XPV78+X2X, making it straightforward for travelers staying nearby. The entire experience lasts around 3 hours, giving enough time for sightseeing, swimming, and turtle spotting without feeling rushed.
The departure time of 1:00 pm allows for a relaxed start to the afternoon. The tour concludes back at the original meeting point, making logistics simple for those staying in the area. This short duration makes it a flexible option for visitors with limited time on the island.

The first stop is Marathonissi, a small private island near Limni Keri beach. Known as turtles’ breeding ground, Marathonissi has no inhabitants or buildings today, having been uninhabited since before World War II. The island’s sandy beach provides a lovely setting for a swim and sunbathing.
This stop lasts approximately one hour, offering a chance to relax on the beach or snorkel in the clear waters. The island’s significance as a caretta caretta turtle habitat adds a special dimension to this visit, giving guests a glimpse into the natural nesting sites of these endangered creatures.
The Keri Caves form the second major stop, accessible only by sea. These sea caves stretch along the coast near Marathia Cape, with some cave entrances large enough for boats to pass through while others only allow swimming inside.
The 40-minute stop at Keri Caves features opportunities for swimming and photo opportunities of the dramatic cliffs and rock formations. The caves develop along a promontory and are characterized by their deep waters and imposing cliffs. The boat access ensures travelers can explore these natural formations up close, making for memorable photos and an immersive experience.
The third stop focuses on turtle spotting in Laganas Bay, a known nesting site for loggerhead sea turtles. These Caretta caretta turtles can weigh up to 140 kg and measure around 120 cm, with some as small as 80 cm. Despite their size, they are fast swimmers, capable of reaching 30 km/h thanks to their powerful fins.
Throughout 45 minutes, the tour provides the chance to observe these endangered turtles in their natural environment. While sightings are not guaranteed, the guides are experienced at spotting them and making the most of the opportunity to see these marine creatures in motion. This stop is often appreciated by those interested in marine wildlife and conservation.
The tour departs from a designated meeting point in Laganas at 1:00 pm, with the activity ending back at the same location. The maximum group size of 23 ensures a more personalized experience, but some reviews mention crowding at swimming spots and organizational issues at the harbor, including overcrowding on boats.
Guests should arrive promptly and be prepared for a potentially busy environment, especially during peak times. The mobile ticket makes access easy and flexible, with free cancellation available up to 24 hours before the start.

The main draw remains the opportunity to see sea caves and turtles while enjoying a compact, affordable boat cruise. The Keri Caves are a standout feature, accessible only by sea, and the swimming stops allow for a refreshing break in the ocean.
However, some reviews point out disorganization at the harbor and overcrowding during swimming spots, which can affect the overall comfort. The boat’s size and capacity may sometimes lead to limited space, especially at the swimming locations.

Reviews indicate a mixed experience. Many praise the friendly staff and beautiful scenery, especially the Keri Caves and turtle sightings. The guide’s knowledge and the small group sizes are appreciated by some travelers.
On the other hand, complaints about poor organization, delays, and crowded spots suggest that travelers should manage expectations. Despite these drawbacks, the low price point and the chance to see marine wildlife and caves make this a worthwhile option for those on a budget or with limited time.
This 3-hour tour offers a cost-effective way to explore some of Zakynthos’s most stunning sea caves and to spot loggerhead turtles in their natural environment. Its short duration makes it perfect for travelers who want a quick yet rewarding marine adventure.
The main strengths are the visits to Keri Caves, the swimming opportunities, and the chance to see turtles. The price is accessible, and the small group size can enhance the experience—though some may find the organization and crowding issues less ideal.
This tour suits adventurous travelers interested in marine scenery and wildlife, willing to accept some logistical imperfections for a budget-friendly price.
“Very disorganised at the harbour, a huge group of people that then got split into 2 groups, then crammed on to boats that appeared to be over occup…”
What is the duration of this boat tour?
The tour lasts approximately 3 hours, starting at 1:00 pm and ending in Laganas.
Where does the tour start?
It departs from a meeting point in Laganas, specifically at 8G92PV78+X2XPV78+X2X.
How much does this tour cost?
The price is $29.58 per person, making it an affordable option for a short marine excursion.
What are the main stops on this tour?
Stops include Marathonissi Island, Keri Caves, and Laganas Bay for turtle spotting.
Can I swim during the tour?
Yes, there are swimming opportunities at Marathonissi and Keri Caves.
Is turtle spotting guaranteed?
Sightings are not guaranteed, but guides are experienced at locating loggerhead turtles.
Are there any reviews about the organization?
Some reviews mention disorganization and crowding, particularly at the harbor and swimming spots.
What should I bring for the tour?
Bring swimwear, towels, sunscreen, and water—though specific items are not listed, these are standard for such excursions.
Is this tour suitable for families?
Most travelers can participate, and service animals are allowed, but the physical activity involved is minimal, making it suitable for most.
Can I cancel this tour?
Yes, full cancellation is available up to 24 hours before the start, with full refund.