Son Doong

Where is Son Doong Cave located ?

• Singapore

• Quang Tri province, Viet Nam

• Busan, Korea

• Quang Binh province, Viet Nam

How long is the cave ?

• Nearly 9 kilometers in length

• Nearly 10 kilometers in length

• Nearly 13 kilometers in length

• Nearly 17 kilometers in length

When was it discovered ?

• In the end of the 18th century

• In the end of the 19th century.

• In the end of the 20th century

• In the end of the 21th century

The reason why Son Doong Cave was formed is ?

• An underground tunnel was buried in the area

• The limestone areas were soft

• It only happened from 2 to 5 million years ago

• The river was buried in the limestone mountains 

The thing that makes it different from other caves in Phong Nha – Ke Bang National Park is ?

• Stalactites and stalagmites  

• The two entrances into the cave

• Its discovery by a local man

• Large holes in the ceiling