After descending nearly 500 feet through vertical drops, freezing waterfalls, and narrow passages, the team reached what they ...
A blue hole off the coast of Mexico has been found to be the deepest underwater sinkhole in the world. The Taam Ja' Blue Hole, which was first discovered in 2021, was originally thought to be 900 feet ...
A gated cave system led explorers deep underground to a blue hole connected to flowing water and an underground aquifer.