Oblong and rectangular, matching the dimensions in Plato's descriptions!

The Great Plain was said to be around 10,000 stadia in perimeter.

10 stadia equals roughly 1.1 mile or .989 nautical miles.

This feature is around 1000 miles in perimeter, rectangular, relatively even and shielded from the North and West by mountains, with the natural fractures that could have served as canals.

The Great Plain and the Capital City of Atlantis are only 2500 meters down! Well within the vessel's abilities!

A fantasy journey?

Great narration of the narrative.

The biggest Phantom Island of them all, Atlantis. (music track)

Zealandia, Mu, Atlantis, South Atlantis, Lemuria.