About
The ancient Romans built elaborate fish farms for moray eels in these artificial caves.
These caves located south-east of Ponza’s harbor are believed to be an elaborate example of a Roman fish farm. During the 1st century CE, the caves were dug into volcanic rock on the island and connected by underwater passages to form five basins. These were used to change the water and move fish and eels between basins. Moray eels were highly valued by Roman elites, which may have been the reason these caves served as eels farms.
