Hang & Trail

How big is Son Doong, really?

Numbers don't do it justice, so pick something you know and see how it stacks up against the world's largest cave passage.

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Son Doong

up to 200m high

2×

You could stack about 2 of statue of liberty to reach the ceiling of Son Doong's main passage.

The cave is big enough to fly a passenger jet through, with room for a whole New York City block inside. It has its own jungle and clouds.

Want to actually stand in it? Son Doong is a four-day expedition, sold out for a couple of years. The next best thing is Hang Pygmy, one of the world's largest caves and bookable this season. Read the full Son Doong guide.