🇬🇷 Greece · Buried city
Helike — Bouras Plain Borehole Submerged City (Gulf of Corinth South)
Early Bronze Age to Byzantine (3000 BCE – 1400 CE) · Helladic / Achaean Greek
Central borehole city of Helike on Gulf of Corinth — Classical grid at –3 m, tsunami couplet at –3 m.