As I wrote earlier, there are plenty of spots around the globe that probably got incremental or very fast flooding due to the Big Melt. Sundaland was one as were the North Atlantic, Mediterranean, Caribbean, the North Sea and Baltic areas, and lots of others including your favorite (and one of mine), the Black Sea deluge. All of these were within the span of human oral history and Great Flood stories survive in every area of the world.
The Atlantis tale probably has some basis in fact. But I think Plato's story is like that parlor game where one person starts a rumor and passes it on around the room, person to person, until it emerges in wildly embroidered form. Plato was simply the last guy in the chain. I doubt the truth will ever be known unless somebody dredges a hunk of rock out of the ocean somewhere with "ATLANTIS" carved on it.
Darwin's Beagle field notebooks (1831-1836)
I have certain proof that the S. part of continent of S. America has been elevated from 4 to 500 feet within the epoch of the existence of such shells as are now found on the coasts. It may possibly have been much more on the sea-coast & probably more in the Cordilleras. If the Andes were lowered till they formed (perhaps 3-4000 ft) a mere peninsula with outlying Islands, would not the climate probably be more like that of the S. Sea Islands, than its present parched nature. At a remote Geological aera, I can show that this grand chain consisted of Volcanic Islands, covered with luxuriant forests, some of the trees out one of which, 15 feet in circumference, I have seen silicified & imbedded in marine strata. If the mountains rose slowly, the change of climate would also deteriorate slowly; I know of no reason for denying that a large part of this may have taken place since S. America was peopled...
http://darwin-online.org.uk/