🇺🇦 Ukraine · Submerged site
Akra — Eastern Breakwater Spur at Naberezhne (Cimmerian Bosporus East)
Archaic to Late Antique (575 BCE – 500 CE) · Milesian / Bosporan
Eastern harbour arm of Akra at Naberezhne — 45 m breakwater spur at –3.5 m.
🇮🇳 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.
🇩🇿 Algeria · Ancient port
Siga Outer Harbour (Takembrit Offshore)
Numidian to Late Antique (3rd c. BCE–7th c. CE) · Numidian (Masaesyli) / Roman (Mauretania)
Syphax's harbour with 200 m submerged rubble mole and purple middens.
🇷🇺 Russia · Submerged site
Bata — Cape Pashennaya Anchorage (Gelendzhik Bay North)
Archaic to Hellenistic (550 BCE – 50 BCE) · Sindian / Milesian Greek / Bosporan
Cape roadstead of Bata on Gelendzhik Bay — 50 m breakwater at –3.5 m and quay at –2.8 m.
🇷🇺 Russia · Submerged site
Phanagoria — Tuzla Spit Western Anchorage (Taman Peninsula)
Archaic to Late Antique (543 BCE – 600 CE) · Ionian Greek / Bosporan Kingdom
Western roadstead of Phanagoria 2–4 m under Taman Bay west of Tuzla Spit — timber jetties and salting quarter 220 m offshore.
🇨🇾 Cyprus · Submerged site
Kato Paphos Harbour – Submerged Breakwater
Hellenistic to Byzantine (320 BCE – 600 CE) · Ptolemaic / Roman / Byzantine
Ptolemaic harbour breakwater 300 m at –1.5 m off Paphos castle – quay at –1 m.