That was one of the possibilities! Ancient maps
(16th Century) even show a different coastline for it freom what we know today. It could be under there...
Another suggestion for the location of Atlantis that always intrigued me is the system of “roads” found off Bimini and Cay Sal. They are very symmetrical lines of rocks running out into the ocean.
Actually - that old map(s?) show the ACTUAL land coastline, that has been obscured by ice since “modern” exploration. Only until ground radar and seismic surveys of more recent years could the true coastline be determined. Which fit fairly well with that old map. Cool stuff.
Comparing the ancient map of Atlantis with the ground (underneath the ice at Antarctica) was supposed to be a match according to some scientist, but I don’t have the link or the name. I just remember reading about it. You might Google it.