Jay Yoon is the American author of the short ebook, Atlantis Shrugged  , also known as Atlantis: The Underworld(b). His views on Atlantis are also available on the Internet(a) where he supports the Caribbean Basin as the location of Atlantis, which he believes was submerged around 9600 BC.
He claims that originally the Basin, although nearly 13,000 feet below sea level, was kept dry by the range of surrounding mountains which was subsequently breached by the earthquake referred to by Plato. Yoon outlines his theory in the form of a Platonic Dialogue, in which the participants are Solon, Aristotle and Critias.
For anyone interested, Yoon has supplied the following co-ordinates for his chosen location for Atlantis – 17°09’54.95″ N 65°03’32.64″ W.
In my opinion his basic idea is fanciful. Why would Yoon’s Atlanteans send an army climbing over 13,000 feet to launch an attack in the eastern Mediterranean, over 5,000 miles away, at a time when suitable ships did not exist in order to attack Athens and Egypt, which did not exist either? Would it not have made more sense to expand in North and South America from the Caribbean?
It is more likely that if a dry Caribbean Basin did exist in 9600 BC, it was flooded by the rising sea levels resulting from the melting icecaps.
In March & April 2016, Yoon, then Brad and later Brady Yoon, rehashed his Caribbean theory on the Ancient Origins website(e). In one(d) he discusses the Deluge and its possible connection with the demise of Atlantis. In the concluding paragraph of the other(c) he admits that “all of this speculation could be entirely baseless”, a view I enthusiastically endorse.
Nevertheless, Yoon has written an interesting article(g) on the origin of Utah’s Great Salt Lake. Originally believed to be the result of the biblical Deluge, today it is claimed that the salt came from tributary rivers which remained after the water evaporated. Yoon offers strong evidence that the salt came from seawater and by extension reinstating the Deluge theory!
Jason Colavito has published a critique of some of Yoon’s earlier posts on Ancient Origins(f).