The marine protected area "Shoals of Tor Paterno" is a diving paradise located along the Roman coast, at a distance between 4 and 7 nautical miles from the beaches of Ostia and Torvaianica. The shoals of Tor Paterno represent a real island at the bottom of the Tyrrhenian Sea, whose summit reaches 18 meters below sea level, while the maximum depth touches the least 60 meters, and it's covered by a surprising amount of animal and plant life.