Most bookedTurtles, Marathonisi & Keri Caves by Speedboat
Three hours by speedboat: turtle spotting in Laganas Bay, a swim in the Keri Caves and 50 minutes on Marathonisi.
Turtles: Spotting in the bay; not guaranteed
Eight trips from Agios Sostis, Laganas and Zakynthos town, sorted by how you travel: on a shared boat, at the wheel of your own, or round the cliffs to Shipwreck Beach. Each one has its own page with the route, the stops and what guests say.
Three hours with turtle spotting, the caves and a swim on Marathonisi.
Most bookedThree hours by speedboat: turtle spotting in Laganas Bay, a swim in the Keri Caves and 50 minutes on Marathonisi.
Turtles: Spotting in the bay; not guaranteed
FamiliesA slow glass-bottom boat with a full hour on Marathonisi, plus Cameo and a swim at the Keri Caves. Good for kids.
Turtles: Spotting in the bay; not guaranteed
3 swim stopsA small speedboat with three swim stops: the Myzithres rocks, the Keri Caves and Marathonisi, then turtle watching.
Turtles: Watching at the end; not guaranteed
Lowest priceThe cheapest seat on the bay: turtles first, then Marathonisi, Keri and Myzithres. Pickup in Laganas and Kalamaki only.
Turtles: Spotting first; not guaranteed
SunsetTurtles, an hour on Marathonisi and the Keri Caves, then the sunset at the Myzithres rocks with a glass of wine.
Turtles: Spotting in the bay; not guaranteed
Half dayFive hours with hotel pickup: Cameo, a glass-bottom boat to Marathonisi and Keri, then an olive oil tasting.
Turtles: Glass-bottom cruise; not guaranteed
No licence needed. You set the stops, and you keep to the park rules.
Private boatYour own small boat for 3 or 4 hours, no licence needed: Marathonisi, Keri and Cameo at your pace. Fuel is extra.
Turtles: Up to you, by the park code
Shipwreck Beach and the Blue Caves, on a separate day.
Other side of the islandA full day round the west coast: the Blue Caves, Navagio from the water, Shiza and Keri, with three swim stops.
Turtles: Maybe off Marathonisi at the end