A UNESCO site, entering the list of World Heritage sites in 1997, the Porto Venere Regional Natural Park is also a Marine Protected Area.
Visitors can expect a crystal-clear sea, due in part to its currents, which surrounds the entire archipelago of Portovenere (Palmaria, Tino and Tinetto), where one can admire caves, rock walls with colonies of Gorgonia, a myriad of fish and, in the strait of Portovenere, a prairie of Posidonia, a protected marine plant.