Stefan Bittner is a German historian, who published a substantial book of over 500 pages  >Atlantis – wissenschaftlich analysiert (Atlantis-Scientifically Analysed). Atlantisforschung commenting on Bittner’s book suggests that he has“made a challenging contribution to solving the Atlantis problem. He comes to the remarkable conclusion that ‘Plato uses a historical source and reinterprets it as a philosophical metaphor’.”<
Bittner proposes a ‘new’ location for Atlantis in the valley of the river Oued Laou, the Wadi Laou east of Tangier in Morocco. Over the past century, a number of researchers have proposed a variety of specific locations within Morocco as the original home of Atlantis, with varying degrees of credibility. What is clear is that Plato did indicate that at least some of North Africa constituted a part of the Atlantean domain, so designating an individual valley as the totality of Atlantis is, for me, not credible and to claim that Atlantis was flooded but did not sink, contradicts Plato, which I consider an unwise position to take, as it also fails to explain how a flooded inland valley can become a hazard for navigation (Timaeus 25d).
Thorwald C. Franke has now written a more extensive review(a) of Bittner’s book.