🇺🇦 Ukraine / Russia (disputed) · Submerged site
Akra – The Fully Submerged Bosporan City at Cape Takyl
Archaic to Late Roman (c.560 BCE – 4th c. CE) · Ionian Greek / Bosporan
Crimean Atlantis — intact classical street grid and double walls at 3–7 m deep off Cape Takyl, the only wholly underwater Bosporan town.