[blam]

"what about a flooding of the Persian gulf? That would tie in to the legend that Bahrain is the site of the garden of eden"

I would expect The Garden Of Eden area to be filled/surrounded with fresh water.

Maybe there was a freshwater lake there during the Ice Age?

[Cronos]

I was thinking that most likely the current Persian gulf would have been a valley during the ice age, with the Tigris and Euphrates meeting and surrounding the island of Dilmun and maybe a river from IRan and one from current Saudi arabia bringing the list of 4 rivers as in the Bible. These would have emptied into one common river that exited at the straits of Hormuz into the Arabian sea