Portus Julius
Dive into Roman history exploring a submerged ancient harbor.
Boat Access
6m Avg Depth
10m Max Depth
About this dive site
This dive site is located in Baia and offers a fascinating glimpse into ancient Roman history. Commissioned by Marco Vipsanio Agrippa in 37 BC during the civil war between Octavian and Sextus Pompey, the Portus Julius served as an arsenal for the Miseno fleet. The impressive port structure was connected to navigable lakes, including Lucrino and D'averno. Today, divers can explore the remains of this ancient harbor, encountering sections of the port wall and some decorative mosaics. Visibility typically ranges from 3 to 5 meters. This site provides a unique opportunity to experience the grandeur of Roman engineering and naval history.
DivingFreedivingSnorkeling
Plan Your Visit
archaeological diveruinshistorical sitebeginner friendlywide angle
Marine Life
damselfishwrasseoctopussea breamgobies
Things to Note
Difficulty:
Beginner
Very shallow depth, though visibility can be low sometimes.
Hazards:
low visibilityboat traffic
Current Strength:
Mild
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