If, while diving in Karaburun, you spot shells rising from the seabed like upright rocks, you are encountering the largest endemic mollusk in the Mediterranean. Known as *pinna* (pen shells)—which can reach lengths of up to 120 centimeters—these creatures serve as some of our seas' greatest defenders in the battle against environmental pollution and the climate crisis. Observing these remarkable organisms in their natural habitat—a feature that makes the reefs of Karaburun unique for underwater photography and diving excursions—is a truly priceless experience.
