That's when sea levels began to rise, and the cave flooded and collapsed, leaving behind the Blue Hole we see today. Researchers think that other marine sinkholes, like Dragon Hole in South China ...

“As for the mythical monsters ... Blue Hole is made of a complex system of caves that once formed on dry land. It is proof of how oceans can rise quickly and catastrophically. “Sea levels ...

Tropical storms have been steadily increasing in frequency over the past 5,700 years, new evidence from sediment in the Great ...

Plunge into this deep blue hole and you'll discover ... lining the coral wall at the surface of the hole. As you descend about 410 feet below sea level, you'll discover the stalactites, but ...