Olous

The account

Olous minted its own coins and signed its own treaties, then the east Cretan coast tilted and the city slipped under the channel by Elounda. Its walls show dark through the shallows beside the causeway; swimmers drift over doorways that opened two thousand years ago. The salt pans beside it were worked into the twentieth century. The city watched from below.

Leads, where the trail points now

• Pin down the most specific last-known position in the record before going; the search centers on Elounda channel, Crete, Greece.
• What you are chasing is A Dorian city's walls wavering under the channel. Work the documented record of Olous back to primary sources and separate what is attested from folklore.
• Open water beside a protected site, snorkelling permitted; Greek antiquities law forbids touching or lifting anything.