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Agios Sostis sits at the southern edge of Zakynthos — the closest harbour to the National Marine Park, Marathonisi Turtle Island, and the Keri Caves. A private boat from here means turtle spotting in Laganas Bay before the group tours arrive and the dramatic Mizithres rocks without the crowds.
All packages include private captain + fuel. Prices cover up to 4 guests; max capacity 7 guests. Extra guests (5th–7th) are +€20 per person. All five packages available at Agios Sostis.
For custom groups, more than 7 people, or custom locations & times, please contact us.
Yes. Agios Sostis is the closest departure point to Laganas Bay and the National Marine Park, where Caretta caretta sea turtles feed and breed. Turtle spotting is highly likely, especially on the Plus, Premium, and Prestige packages which include dedicated snorkel stops in the Marine Park.
Yes, during permitted daytime hours. Marathonisi is a protected nesting beach — landing is allowed on the sandy western side, while the nesting areas are roped off and strictly protected. Your captain will advise on conditions on the day.
North is the closest departure area to Navagio Shipwreck and the Blue Caves. Agios Sostis (south) is the gateway to the National Marine Park, turtles, Keri Caves, and Mizithres. Choose based on what you want to see — or book the Prestige package from either point for a full island circuit.
Yes. Our boats enter the Keri Caves arches, and you can swim through them. The water inside glows an extraordinary deep blue from the sunlight refracting through the limestone — one of the most photographed swimming spots in Zakynthos.
Departures from Agios Sostis harbour, South Zakynthos.
From Kalamaki / Airport: ~25 min by car · From Zakynthos Town: ~25 min · From Laganas: ~10 min · From Tsilivi: ~30 min
Need a lift?Contact us when booking and we will arrange it. Transfer charged separately.
You can also visit us at our office opposite Zakynthos Airport in Kalamaki and book in person any time. We're open daily during the tourist season and happy to help you plan your trip face to face.
Choose your package, tell us your preferred date and number of guests. We confirm availability and respond directly.
WHAT GUESTS SAY
★★★★★"Absolutely the best experience on the island. Ross was responsive, the boat was beautiful, and the route was perfect — we saw turtles within the first 20 minutes."
Sarah M. · United Kingdom
★★★★★"An exceptional vessel and a flawless day. Ross accommodated every request on the day. Highly recommended."
Thomas K. · Netherlands