The Cool Down on MSN

Experts stunned by remarkable sighting inside world's largest cave: 'We see big groups'

The cave features chambers wider than airplane hangars and skylights that support underground forests Experts stunned by ...
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The World's Largest Cave Has Its Own Climate System With Jungles, Rivers, and Clouds—and This Is the Only Way You Can See It

Highlights of the five-night trip include seeing the cave’s own rainforest and a calcite wall called the Great Wall of Vietnam. Vietnam is home to the world's largest cave. It's so vast that it has ...
Times Union

The world's largest underwater cave has been discovered — and may hold ancient Mayan secrets

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...
AOL

What the Largest Cave on Earth Looks Like From Inside

Hidden inside Vietnam’s Phong Nha-Ke Bang National Park is Son Doong, the largest cave on Earth. It’s so vast that a Boeing 747 could fit through its chambers. Inside, jungles grow beneath openings in ...
Chattanooga Times Free Press

History and secrets await in Kentucky’s Mammoth Cave, the world’s longest cave

The air is cool and damp. The light shining from behind is low and tinted, while a park ranger's hand hovers over a button. Then, a switch clicks. Light floods a chasm in the stone, a chamber called ...