Marathonisi (aka Turtle Island), an uninhabited island except for sea turtles, is part of the National Marine Park of Zakynthos, which works to protect sea turtles. On the island, there are two beaches: one sandy and one rocky.
The most beautiful beach on Zakynthos and one of the world's most photographed beaches. It is only accessible by sea and gives the impression of vastness and perfection. It is made up of millions of small pebbles with blue sea shades as far as the eye can see, resulting in a relic that is unique in its gender and appears to have been created by an artist.
Kerì Caves, accessible only by sea with private boats or tourist excursions, develop along the promontory of Marathia Cape, in the South-West area of the island. Along the coast there are many caves which entrances scarcely suffice to get in swimming, others are broad enough to enter directly with a boat..
The Blue Caves are one of the island's most popular and advertised attractions; you can visit them by boat or on one of the many organized tours. The Blue Caves are made up of specific geologic formations that give rise to a series of caves along the island's northwestern coast, beginning near Agios Nikolaos and ending near Skinari Cape.
