With a depth of around 2,199 metres, a cave in Georgia is so deep that nearly seven Eiffel Towers could fit inside.

As the man went deep inside the hole, he found a waterfall streaming down into a cave. The unbelievable video went viral as ...

They had crawled into Cave of the Winds, deep inside a cave system known as Clearwater ... Then the expedition leader frowned. Waterfalls roughly 400 feet high pour through the roof of Deer ...

Beneath the cliffs of Waterfall Bay is a vast network of underground caves carved out over several million years of constant pounding by the Southern Ocean. Within this cave system fossils up to ...