thumb|Marathonisi Island Zakynthos, Greece
thumb|Marathonisi Island Zakynthos, Greece
Marathonisi () is a small uninhabited island off Zakynthos in western Greece. The island was inhabited until the Second World War, but now is part of the Zakynthos National Marine Park, protected under the Natura 2000 program. It is a reproduction site for the Caretta caretta sea turtle.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).