The port was defended by a long sea wall from Punta dell'Epitaffio to Punta Caruso on the sandy edge of Lake Lucrinus and on which the Via Herculanea passed. In the wall was a channel that allowed ships to enter the Lucrino basin (and road traffic crossed over a wooden bridge). The outer harbour behind Cape Misenum may have served the active vessels of the Roman navy and provided room for training exercises, while its inner counterpartIl Portus Julius https://www.ulixes.it/italiano/i_pg01.html?https://www.ulixes.it/italiano/i_pg02bfr16_a.html was probably designed for the reserve fleet and for repairs, and as a refuge from storms.
