The protected loggerhead sea turtle- Caretta Caretta has become an endangered species they visit the island every year to nest and lay their eggs, a lovely excursion for the whole family and nature lovers.An absolute must-see is Marathonissi located at the southern part of Zakynthos, It is the largest islet in the bay of Lagana and a nesting place of the endangered Caretta caretta. From both spots, boats of various sizes leave frequently for a trip to the Marathonisi and turtle Spotting.

It encompasses the marine area of the Bay of Laganás, Finding refuge in the Bay is actually a matter of survival for this beautiful but critically endangered species Caretta Caretta. It is also home to the endangered Sea daffodil (Pancratium maritimum) and submerged reefs as well as hundreds of species of flora and fauna, some of which are of great importance. A resident population of the critically endangered species the Mediterranean monk seal monachus monachus protected on the west coast of Zákynthos.