Marathonisi Beach, located on a small islet off the south coast of Zakynthos, is a true paradise for nature lovers and beach enthusiasts. 

This is because the island is a vital nesting spot for the endangered loggerhead sea turtles, known as Caretta Caretta. 

Visitors may be lucky enough to spot these magnificent creatures laying their eggs or swimming gracefully in the surrounding sea.  

The beach is easily accessible by boat, and many tour operators offer daily trips to Marathonisi.