Lake Huron (Michigan, U.S.)
Located about two miles off the shores of Lake Huron lies a petrified forest in 40 feet of water.10 Using carbon dating, scientists have determined the trees to be nearly 7,000 years old. The petrified trees originally grew on dry land, so their discovery suggests that the Great Lakes area had a very different landscape thousands of years ago.
Since the discovery of the submerged forest, researchers have found evidence of ancient hunting camps and believe that early hunters were able to roam and run through the lake. The area is now a popular diving spot, attracting underwater explorers from across the globe.