Crimea is a large peninsula on the Black Sea coast of Ukraine. At the time of writing (April 2023) Crimea was still occupied by the Russian military. From an atlantological point of view, it is interesting that one of the principal icons of Ukraine is a stylised trident, the symbol of Poseidon.
Crimea itself has had a number of attempts made to associate it with the location of Atlantis. The most eye-catching promoters of this idea were the late Leon Flying Eagle and Mary Whispering Wind, who published their theory in The Atlantis Motherland  nearly twenty years ago. They claimed(a) that in the Crimean port city of Kerch the nearby Mithridat Hill was the original site of the capital city of Atlantis confirmed by the surrounding topography that matched closely Plato’s description. They have also suggested that the shallow Strait of Kerch between Crimea and Russia as the location of Plato’s ‘shoals‘(c).
An interesting detail is that the Strait of Kerch was one of several locations that the ancient Greeks referred to as the Pillars of Heracles listed by Robert Schoch in Voices of the Rocks [454.87], but, unfortunately, without citing his source.
They further claim(b) that there is evidence that the Kopet-Dagh fault line, which runs just above the strait, experienced a devastating (8.9) earthquake around 9600 BC destroying Atlantis in the Strait. At this time what we now call the Sea of Azov was the well-irrigated plain adjacent to the city of Atlantis described by Plato. They claim that the earthquake caused a massive influx of water from the Caspian Sea, which had been rising due to the melting ice caps in the north. This combination caused the creation of the Sea of Azov and the flooding of Atlantis.
All this would have been fine except that at the start of their homepage, they announced that “Thirty-nine thousand years ago a primitive tribe of wild robust Neanderthals celebrated the beginning of a new species. Visitors from a distant planet united with their tribe. Together they created the great Empire of Atlantis, the Motherland of all Modern Humans.” For me, this just undermines the credibility, if not the rationality of the authors.
Anatoliy Ivanovich Zolotukhin is a Ukrainian researcher from the city of Nykolaiv (also known as Mykolaiv) who authored Homer: The Immanent Biography , in which he claims that Homer was born in Alibant (Mykolaiv) on September 14, 657 BC)(f). He follows the views of Karl Ernst von Baer (1792-1876) who believed that most of Odysseus’s travels took place in the Black Sea rather than the Mediterranean. Additionally, Zolotukhin locates Atlantis in the western Crimean area of Evpatoria(d) on his multilingual website with the inviting title of Homer and Atlantis(e).
Werner E. Friedrich is a German researcher who published a bilingual booklet in 2006  in which he firmly located Atlantis in the Black Sea region circa 10,000 BC on a plain west and east around today’s Crimean peninsula.
Christian & Siegfried Schoppe are a father and son team of German researchers, who firmly assert that Atlantis was located in the Black Sea. More specifically they suggest that Snake Island(h) situated 35km east of the Danube Delta, was the location of the Atlantean capital. Snake Island has also been referred to on a Russian website(i) that discusses a Black Sea Atlantis. It includes some video clips with Russian dialogue. Snake Island has also been adopted by George K. Weller as the location of Atlantis(j). Snake Island also featured in the current Russian invasion of Ukraine.
In his 2020 book, Apocalypse , Dr Sean Welsh agreed that Noah’s Ark finally rested on Mt. Ararat, but took everyone by surprise by claiming that it was not Ararat in Turkey but Ararat mountain/hill on Crimea’s Kerch Peninsula!
Very ancient pyramids have also been claimed for Crimea(g).
(b) Great Atlantis Flood (archive.org)
(c) Index (atlantis-today.com)
(f) Nikolaev Pushkin club (archive.org)
(g) Archive 3619 | (atlantipedia.ie)
(i) http://survincity.com/2010/04/conspiracy-theory-black-sea-atlantis-the-case-of/ (link broken Dec.2020)
(j) Comparison of Plato’s Critias with George K. Weller’s concept of ancient Atlantis and its actual location. – The Weller Farm (archive.org)