GEOGRAPHY

Physical - Geology

Most Extensive Caves

This list features the largest cave systems in the world based on total length.

RANK	CAVE	LOCATION	LENGTH	DISCOVERED
1	Mammoth Cave	Brownsville, Kentucky, United States	685.6 km (426.0 mi)	1791
2	Sistema Ox Bel Ha	Tulum, Quintana Roo, Mexico	496.8 km (308.7 mi)	1996
3	Shuanghedong Cave Network	Guizhou, China	417.6 km (259.5 mi)	1988
4	Sistema Sac Actun / Sistema Dos Ojos	Tulum, Quintana Roo, Mexico	386.1 km (239.9 mi)	1987
5	Jewel Cave	Custer, South Dakota, United States	354.07 km (220.0 mi)	1900
6	Wind Cave	Hot Springs, South Dakota, United States	266.8 km (165.8 mi)	1881
7	Optymistychna Cave	Korolivka, Ukraine	264.5 km (164.4 mi)	1966
8	Clearwater Cave System	Miri, Sarawak, Malaysia	257.8 km (160.2 mi)	1978
9	Lechuguilla Cave	Carlsbad, New Mexico, United States	244.7 km (152.0 mi)	1900
10	Fisher Ridge Cave System	Brownsville, Kentucky, United States	212.1 km (131.8 mi)	1981

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References

World Atlas. (n.d.). Longest Cave Systems in the World. [online] Available at: https://www.worldatlas.com/articles/longest-cave-systems-in-the-world.html [Accessed 1 December 2025]. CabinZero. (n.d.). Largest Caves in the World. [online] Available at: https://it.cabinzero.com/en/blogs/travel-tips/largest-caves-in-the-world?shpxid=a3c558dc-f6be-4a39-9fbb-6e65726136fc [Accessed 1 December 2025]. Adda247. (n.d.). Longest Cave in the World. [online] Available at: https://currentaffairs.adda247.com/longest-cave-in-the-world/ [Accessed 1 December 2025].

GEOGRAPHY

Physical - Geology

Most Extensive Caves

References

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