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Largest cave by volume

The current largest cave by volume record is 1,359,614,668 cu ft, held by Hang Son Doong, set on January 1, 2009. Last checked October 9, 2026.

1,359,614,668

cu ft

Hang Son Doong

Quang Binh, Vietnam, 2009

Holder: Hang Son Doong
Record: 1,359,614,668 cu ft
Metric: 38,500,000 m³
Exact figure: 38.5 million m3
Location: Quang Binh, Vietnam
Date set: January 1, 2009
Last checked: October 9, 2026

Sources

livescience.com Hang son doong the worlds biggest cave so outrageous in size it fits jungles and the great wall of vietnam

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