🇮🇳 India · Submerged site
Poompuhar – Sangam Drowned Port of Kaveripumpattinam
Iron Age Sangam to Early Chola (c. 500 BCE – 500 CE) · Tamil Sangam / Early Chola
Sangam Chola drowned wharf 1.5 km at –2 to –4 m off Kaveri mouth – U-breakwater at –4 m.
🇮🇹 Italy · Ancient port
Portus Julius — Agrippa's Warport Lake Avernus Canal
Roman (37 BCE Agrippa Lake Lucrino-Avernus warport for Agrippa's fleet vs Sextus Pompey, Abandoned 12 BCE Misene) · Roman Augustan military harbor Julius (37–12 BCE)
Portus Julius canal excavated by Borriello & D' Agostino, Cocceius tunnel to Avernus.
🇮🇹 Italy · Ancient port
Misene — Misenum Roman WarFleet Base Mole
Roman Imperial (12 BCE–5th c. CE Classis Misenensis largest fleet 10,000 men, 100 ships, Pliny the Elder died 79 CE here) · Roman Imperial Naval (Augustus to late antiquity)
Misenum naval base surveyed, Pliny Elder 79.