Question 1

True or false: Son Doong Cave is located in Vietnam, near the border with Laos.

Accepted Answer

True. It lies in Phong Nha-Ke Bang National Park in central Vietnam, close to the Lao border.

Question 2

True or false: The cave was discovered by a local farmer named Ho Khanh in 1991.

Accepted Answer

True. Ho Khanh stumbled upon the entrance while seeking shelter from a storm, but it was only explored fully by a British team in 2009.

Question 3

True or false: Explorers have found a hidden underground city inside Son Doong with ancient artifacts.

Accepted Answer

False. No human settlements or cities have ever been discovered inside; the cave is pristine and largely untouched.

Question 4

True or false: Son Doong Cave is large enough to fit a 40-story skyscraper inside it.

Accepted Answer

True. The cave has sections over 200 meters tall, easily accommodating a building that size. It’s the largest cave passage by volume on Earth.

Question 5

True or false: Son Doong Cave has its own weather system, including clouds and rain.

Accepted Answer

True. Temperature differences between the cave and outside create fog and actual rain clouds inside, a rare phenomenon for caves.

Question 6

True or false: Son Doong Cave was formed by a volcanic eruption that created its massive chambers.

Accepted Answer

False. It was carved by an underground river eroding limestone over millions of years, not by volcanic activity.

Question 7

True or false: The cave contains a section where ancient fossilized whale bones are embedded in the walls.

Accepted Answer

True. Fossils of ancient marine creatures, including whale-like reptiles, have been found in the cave’s limestone, dating back 300 million years.

Question 8

True or false: The cave was named after a Vietnamese king who once used it as a refuge during war.

Accepted Answer

False. Son Doong translates to 'Mountain River Cave' in Vietnamese, named for its formation, not a historical figure.

Son Doong Cave Trivia Questions