At the moment, there are two predominant theories about the Biblical story of Noah's Ark and the great flood. The most popular one is the flooding of the Black Sea. This theory was initially proposed in 1990 by two Columbia University scientists, William Ryan and Walter Pitman. Archaeologists have found evidence of shipwrecks and ancient pottery, as well as the remains of people that died in a great flood in the Black Sea about 7,000 years ago. They estimate that more than 150,000 square kilometres of land was submerged under water at the time. This theory suggests that the flooding disaster may have later translated into the story of Noah and the great flood. Robert Ballard, an explorer and archaeologist who found the wrecked remains of the Titanic, strongly supports the Black Sea theory, and is trying to discover more proof to support it. - See more at: The Great Flood – Scientific evidence
There are many accounts over the years about the flood and Noahs Ark, much of which is archeological. I will point to an interview done on ABC a few years ago about this exact topic.
In December 2012, in an interview with Christiane Amanpour for ABC News, Robert Ballard, one of the world's best-known underwater archaeologists, talked about the findings of his team is probing the depths of the Black Sea off the coast of Turkey in search of traces of an ancient civilization hidden underwater since the time of Noah.
According to a theory proposed by two Columbia University scientists, there really was a flood in the Black Sea region. They believe that the now-salty Black Sea was once an isolated freshwater lake surrounded by farmland, until it was flooded by an enormous wall of water from the rising Mediterranean Sea. The force of the water was two hundred times that of Niagara Falls, sweeping away everything in its path.
Four hundred feet below the surface, Ballards team unearthed an ancient shoreline, proof to Ballard that a catastrophic event did happen in the Black Sea. By carbon dating shells found along the shoreline, Ballard said he believes they have established a timeline for that catastrophic event, which he estimates happened around 5,000 BC. Some experts believe this was around the time when Noah's flood could have occurred.
At first Ballard's team found piles of ancient pottery, but then they made an even more important discovery. Last year, Ballard discovered a vessel and one of its crew members in the Black Sea.
"That is a perfectly preserved ancient shipwreck in all its wood, looks like a lumber yard," he said. "But if you look closely, you will see the femur bone and actually a molar."
The shipwreck was in surprisingly good condition, preserved because the Black Sea has almost no oxygen in it, which slows down the process of decay, but it does not date back as far as the story of Noah.
Ballard does not think he will ever find Noah's Ark, but he does think he may find evidence of a people whose entire world was washed away about 7,000 years ago. He and his team said they plan to return to Turkey next summer.