How tall is Son Doong, the world's biggest cave?
200 metres. A 40-storey skyscraper would fit inside, and collapsed skylights let a jungle grow on the floor.
How close would your guess have been?
In the game we ask it like this: “How many metres high is the roof of Son Doong, the world's biggest cave?”
Type a number — scored exactly the way a round in the game is.
The answer
200metres
200 metres in other units
- 656 feet



