Posidonia Seagrass

The Lavezzi Islands sit at the heart of some of the Mediterranean's most extensive and well-preserved Posidonia oceanica meadows, protected within the international strait reserve. These UNESCO-recognised meadows produce oxygen, stabilise sediment, and serve as nurseries for dozens of commercially important species. Diving through healthy posidonia forests — their leaves streaming in gentle currents — is a reminder of what the Mediterranean once looked like everywhere.