A private 4‑hour boat cruise from Agios Sostis that visits Eros Cave, the Mizithres cliffs, Keri Caves and Marathonissi (Turtle Island). Swim and snorkel in clear water, search for Caretta caretta, and customize stops with your skipper.
A private 4‑hour boat cruise from Agios Sostis that visits Eros Cave, the Mizithres cliffs, Keri Caves and Marathonissi (Turtle Island). Swim and snorkel in clear water, search for Caretta caretta, and customize stops with your skipper.
The boat slips away from Agios Sostis and the island opens like a map of limestone and blue: sheer white Mizithres cliffs rise, caves squat in shadow, and Marathonissi sits like a green jewel in Laganas Bay. Salt air cuts sharp; the skipper calls a stop and the water seems to reach up, daring you to dive.
Verified experiences and guided adventures in the surrounding area.
Operated by YOTOMU · Agios Sostis, Zakynthos
The boat slips away from Agios Sostis and the island opens like a map of limestone and blue: sheer white Mizithres cliffs rise, caves squat in shadow, and Marathonissi sits like a green jewel in Laganas Bay. Salt air cuts sharp; the skipper calls a stop and the water seems to reach up, daring you to dive.
Geology here is straightforward and dramatic — porous Ionian limestone carved into arches, caves and white cliffs by relentless waves. Maritime history threads the island from Venetian harbors to fishing villages; local skippers still read currents with a practiced eye. Culture is simple: fresh seafood, loud plates, and a rhythm set by the sea.
On a private 4-hour cruise you visit Eros Cave, the Mizithres stacks, Keri Caves and the protected shoals around Marathonissi (Turtle Island). Expect multiple swim and snorkel stops in clear, shallow bays where seagrass beds harbor Caretta caretta and small shoals of wrasse and bream. The tour’s private format means stops are flexible — ask to linger at the natural pools (Pisines) if visibility is good.
Practical edge: mornings are calmer and visibility is typically best; bring reef-safe sunscreen, a snug mask or use the provided gear, and waterproof storage for phones. Respect marine life: do not chase or touch turtles and follow skipper guidance. If you’re prone to seasickness, take medication before departure. The trip is family-friendly and physically easy, but the sea is alive and demands basic respect.
You may—Laganas Bay and Marathonissi are important habitats for loggerhead turtles, but sightings are never guaranteed; the skipper knows the best spots and seasons for sightings.
Yes; the cruise is family‑friendly and described as physically easy, but children should wear life jackets and non‑swimmers should remain in shallow stops or use provided flotation and guidance.
High‑quality snorkeling equipment is provided on board, though some guests prefer to bring their own mask for fit and comfort.
The operator cancels tours in unsafe conditions and offers a full refund if canceled at least 24 hours before departure or when the skipper deems conditions unsafe.
YOTOMU operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




The boat slips away from Agios Sostis and the island opens like a map of limestone and blue: sheer white Mizithres cliffs rise, caves squat in shadow, and Marathonissi sits like a green jewel in Laganas Bay. Salt air cuts sharp; the skipper calls a stop and the water seems to reach up, daring you to dive.
The boat slips away from Agios Sostis and the island opens like a map of limestone and blue: sheer white Mizithres cliffs rise, caves squat in shadow, and Marathonissi sits like a green jewel in Laganas Bay. Salt air cuts sharp; the skipper calls a stop and the water seems to reach up, daring you to dive.
Geology here is straightforward and dramatic — porous Ionian limestone carved into arches, caves and white cliffs by relentless waves. Maritime history threads the island from Venetian harbors to fishing villages; local skippers still read currents with a practiced eye. Culture is simple: fresh seafood, loud plates, and a rhythm set by the sea.
On a private 4-hour cruise you visit Eros Cave, the Mizithres stacks, Keri Caves and the protected shoals around Marathonissi (Turtle Island). Expect multiple swim and snorkel stops in clear, shallow bays where seagrass beds harbor Caretta caretta and small shoals of wrasse and bream. The tour’s private format means stops are flexible — ask to linger at the natural pools (Pisines) if visibility is good.
Practical edge: mornings are calmer and visibility is typically best; bring reef-safe sunscreen, a snug mask or use the provided gear, and waterproof storage for phones. Respect marine life: do not chase or touch turtles and follow skipper guidance. If you’re prone to seasickness, take medication before departure. The trip is family-friendly and physically easy, but the sea is alive and demands basic respect.