Was the submerged land in the North Atlantic exposed during the Ice Age?

So, was the underwater land off the west coast of the Orkney-Shetland Islands exposed during the last Ice Age? As I wrote yesterday, according to Professor Arysio Santos, author of Atlantis: The Lost Continent Finally Found, at the end of the last Ice Age, some 11,600 years ago, sea level was 500 feet lower than it is now. Therefore, many of the lands that are currently underwater, were above sea level at that time.

I consulted the Mail Online article I wrote about in my July 19th posting to see how deep underwater the submerged land was off the west of the Orkney-Shetland Islands. And, it is too deep to qualify for Atlantis according to Prof. Santos’ theories.

The 1.2mile-deep landscape is located in the North Atlantic west of the Orkney-Shetland Islands and has peaks that once belonged to mountains and eight major rivers.
Lost world: Ancient submerged landscape of mountains and riverbeds found on the Atlantic seabed