The Titanic sank in the North Atlantic Ocean, about 1,240 miles off the coast of Newfoundland, Canada. The water temperature in this area is typically around 34 degrees Fahrenheit, which is cold enough for great white sharks to survive. In fact, great white sharks have been found as far north as the Arctic Circle, where the water temperature can be as low as 32 degrees Fahrenheit.
Great white sharks are also known to travel long distances, so it is possible that they could swim from other parts of the Atlantic Ocean to the area where the Titanic sank. For example, great white sharks have been tracked swimming from South Africa to Australia, a distance of over 6,000 miles.
So, while it may be unlikely that there are great white sharks swimming around the wreck of the Titanic, it is certainly possible.