When combined, the two systems formed a 215-mile-long underground labyrinth, making it the largest flooded cavern ... touring hundreds of miles of underwater caves in the state of Quintana Roo ...

A group of divers have connected two underwater caverns in eastern Mexico to reveal what is believed to be the biggest flooded cave on the planet, a discovery that could help shed new light on the ...

57,000 year-old wolf puppy found frozen in Yukon permafrost 57,000 year-old wolf puppy found frozen in Yukon permafrost Maya Artifacts Found In World's Largest Underwater Cave Maya Artifacts Found ...

It's roughly 200 miles south of Bangkok, and one of the most photographed caves in the world. The world's largest cave is the Son Doong Cave in Vietnam. Located in the Quang Binh province ...