In the first century BC, it was impossible to sail around Cape Planka or Cape Diomedes during a huge storm. This is the region of the jugo and bura, local winds that are linked to the myth of the Argonauts, and that conspire to produce one of the most deadly navigable points on the eastern coast of the Adriatic. A Roman ship transporting 150 amphorae full of wine from northern Italy to Greece anchored for the last time in the Bay of Gornji Muli in Rogoznica. For a medium-sized boat overloaded with amphorae, even a closed bay was not safe. She capsized and sank to a depth of 20 meters, hitting the underwater rocks, and her wreckage is scattered across a field 13x10m in size. The site was excavated and preserved in 1998.
During the cold days of winter and war in January 1942, a large Italian transport ship called ‘’Nuncio’’ was sunk by a British submarine between the Mulo lighthouse and Velika Smokvica. The wreck lay undiscovered at the bottom of the sea for sixty-six years. The waters around Rogoznica contain many shipwrecks from different historical periods, so we might say there is a museum in the deep blue sea, a trove of historical material intriguing to scholars and tourists alike.