If this were the remains of an antediluvian civilization, wouldn’t the archeologists find similar ruins over the rest of Cuba?
Why?
Not sure. The Collins book indicates the evidence found was all underwater. Maybe large-scale seismic shifts buried everything that had been on dry land?
I believe it’s difficult to say without knowing the depth of the ruins. For instance if the ruins are at a depth of 1000 meters the Cuban Island would have been a mountain and aside from a few villages or homes on the mountainsides there would not be any large metholithic structures.
Just a thought.