Molo IV is among the most popular dive sites within the Marine Protected Area of Ventotene and Santo Stefano. Situated near the island of Santo Stefano, this site features diverse bathymetrics suitable for divers of all experience levels. The seabed is distinguished by large boulders arranged on a slope that descends from -6 meters to depths exceeding -45 meters, making it an ideal location for underwater exploration in Ventotene.