Hang Son Doong cave — the name means "Mountain River" — is young compared with other limestone caves. It formed 2 to 3 million ... a colossal block of rock more than 400 million years old ...
Within the gorgeous Swiss Alps, families can embark on a tour of this cave system that was once a dragon's lair and learn the ...
Chief operations officer Muhammad Aidid Haiqal Ismail said it took his family nearly two years to transform the cave into a suitable ... they did not destroy the rock formations, but merely ...
NARRATOR:'There are all sorts of different-shaped rocks in the cave. They're called rock formations. A gower pool is just one kind of rock formation.' TOM:Actually, William, this would be a great ...