🇺🇦 Ukraine · Submerged site
Olbia Pontica — Berezan Approach Breakwater
Mid-Holocene forest to Late Antiquity · Milesian Greek / Roman
Northern channel breakwater of Olbia — 70 m mole at 4–6 m off Berezan approach with Holocene forest below.
🇬🇷 Greece · Submerged site
Delos–Rheneia – Submerged Sacred Harbour of Apollo's Island
Archaic to Late Roman (8th c. BCE – 7th c. CE) · Delian Greek / Cycladic
Verified – Delos sacred harbour between Delos and Rheneia channel 3 m subsided. Apollo sanctuary harbour 8th c. BCE Delian League treasury. Two moles 200 m at 2–3 m, warehouses.
🇬🇷 Greece · Submerged site
Antikythera Wreck — Mechanism and Bronze Statue Reef
Late Hellenistic (c.70–50 BCE) Roman loot shipwreck from Asia Minor to Rome 60 m Greek art cargo · Roman late Hellenistic loot ship (Pergamene? Rhodian stones) 60 BCE
Antikythera sponge 1900, Cousteau 1976, Mechanism found 1901.
🇹🇳 Tunisia · Submerged site
Thabraca (Tabarka) – Numidian–Roman Double Harbour
Numidian to Genoese (c. 400 BCE – 1542 CE) · Numidian / Carthaginian / Roman / Genoese
Numidian marble-shipping double harbour – causeway at –0.5 m and Roman quay at –1 m off Tabarka island.
🇪🇬 Egypt · Submerged site
Marea – Lake Mareotis Port of Alexandria
Classical to Byzantine (570 BCE – 785 CE) · Egyptian Greek / Roman / Byzantine
Ptolemaic wine port on Lake Mareotis feeding Alexandria — jetties now reed-submerged –1 to –2 m at Hawariya.
🇬🇷 Greece · Submerged site
Delos–Rheneia Causeway – Cycladic Sacred Harbour Dromus
Classical to Hellenistic (426 BCE – 88 BCE Sulla/Mithridates sack) · Athenian / Cycladic Delian League
Sacred processional causeway 250 m linking Apollo's Delos to Rheneia necropolis — basalt slabs now –1 to –3 m on channel reef.
🇮🇱 Israel · Submerged site
Tel Dor (Dora) – Phoenician–Herodian Harbour Submerged
Middle Bronze to Byzantine (c. 2000 BCE – 640 CE) · Canaanite / Sikil Sea Peoples / Phoenician / Hellenistic / Herodian / Roman
Lagoon harbour city behind three islets – Phoenician quay and slipways at –0.5 to –3 m in Dor lagoon.
🇩🇪 Germany · Submerged site
Vineta – Legendary Baltic Sunken Trading City off Usedom
Early Medieval (8th–12th c. CE) · Wendish Slav / Viking / hypothesized
Baltic Atlantis — Adam of Bremen Jumne 1075, claimed sunken off Usedom/Wollin with Koserow pavement at −5 m (contested glacial till).
🇪🇬 Egypt · Submerged site
Berenike Troglodytica — Northern Lagoon Extension Harbour
Ptolemaic to Byzantine (275 BCE – 600 CE) · Ptolemaic / Roman
Berenike's second northern lagoon harbour — shallow reef-pass pier and quay 0.5–1.5 m under Foul Bay northern basin.