Karst landscape · Chongqing
Wulong Karst
武隆喀斯特
Natural bridges, giant sinkholes and caves above the Wu River
Wulong Karst in south-eastern Chongqing is a landscape of giant limestone arches, collapse sinkholes (tiankeng) and cave systems carved by rivers draining to the Wu River. Its three natural bridges, the Qingkou tiankeng and Furong Cave were inscribed in 2007 as part of the South China Karst World Heritage site.
- UNESCO World Heritage (natural), South China Karst · 2007
- National geopark
Key facts
Overview
Wulong district lies where the Wu River cuts through the limestone uplands of south-eastern Chongqing on its way to the Yangtze at Fuling. Streams sinking into the limestone have hollowed out caves, and where cave roofs have collapsed they have left vast shafts and gorges spanned by the surviving remnants of rock. The result is one of the finest examples of tiankeng and natural bridge landscapes in the world.
The World Heritage component has three parts: the Three Natural Bridges in the Yangshui river valley, the Qingkou tiankeng, and Furong Cave in the gorge of the Furong River. Above them rises the Fairy Mountain plateau, a high grassland and forest area that serves as the resort base for visitors.
How the landscape formed
Wulong's rocks are thick Cambrian to Triassic limestones and dolomites, uplifted and cut by the Wu River and its tributaries as the region rose. Underground rivers enlarged fractures into caves; as the rivers cut deeper, cave roofs collapsed, forming tiankeng — enormous sinkholes with vertical walls — and leaving arches where the roof held. The Three Natural Bridges are such remnants, standing between two tiankeng. Furong Cave, by contrast, is an old, high-level cave rich in calcite formations such as stalagmites, flowstone and delicate helictites.
Highlights
Three Natural Bridges
天生三桥
Tianlong, Qinglong and Heilong bridges, three limestone arches in succession spanning a gorge between two collapse sinkholes; among the largest natural bridge groups in Asia.
Tianlong (Heavenly Dragon) Bridge
天龙桥
The first bridge, with a double arch through which the path leads into the gorge.
Tianfu courier station
天福官驿
A reconstructed Tang-style post station on the floor of the gorge, built as a film set and left in place.
Furong Cave
芙蓉洞
A large cave above the Furong River with halls of stalagmites, flowstone and rare crystal formations.
Qingkou tiankeng
青口天坑
A collapse sinkhole with sheer walls, part of the World Heritage site but not developed for visitors.
Longshuixia fissure
龙水峡地缝
A narrow slot gorge with waterfalls and walkways, near the Three Natural Bridges.
Fairy Mountain
仙女山
A high plateau of meadows and forest above the karst, cool in summer and with snow in winter.
Plants and wildlife
The deep, shaded tiankeng and gorges hold moist microclimates where forest has survived on inaccessible walls. The surrounding hills carry subtropical evergreen and mixed forest, while the caves shelter bats and cave-adapted invertebrates.
Plants
Evergreen broadleaf forest
常绿阔叶林
Covers the steep walls and the floors of the sinkholes.
Ferns
蕨类
Thrive in the humid shade of the gorges.
Wildlife
Bats
蝙蝠
Roost in the caves and hunt over the river valleys.
Cave fauna
洞穴生物
Blind fish and invertebrates adapted to darkness live in the underground rivers of the region.
Culture and legend
The Wu River valley was long a trade route between Chongqing and Guizhou, and Tujia and Miao communities live in the hills. Wulong's gorges have been used as film locations for Chinese and international productions, including Zhang Yimou's Curse of the Golden Flower, which left the courier-station set in the gorge.
Wu River
乌江
The largest southern tributary of the Yangtze in Chongqing, whose gorges run through Wulong.
Tujia
土家族
A people of the Wuling Mountains living in south-eastern Chongqing.
History
1993
Furong Cave explored
Local people and cavers explored the cave, which was opened to visitors soon afterwards.
2006
Curse of the Golden Flower filmed
The film brought the Three Natural Bridges to national attention.
2007
UNESCO World Heritage
Inscribed with Shilin (Yunnan) and Libo (Guizhou) as the first phase of the South China Karst.
2014
South China Karst extended
Jinfo Mountain in Chongqing was added in the second phase, together with sites in Guangxi and Guizhou.
Through the seasons
Spring
Mild and green; waterfalls in the gorges gain strength with the spring rain.
Summer
Hot and humid in the valleys, with heavy storms; Fairy Mountain is a cool retreat from Chongqing's heat.
Autumn
Mild, drier and clear, the most comfortable season for walking in the gorges.
Winter
Cool and damp in the valleys; snow on Fairy Mountain draws visitors from the city.
Routes and ways in
Three Natural Bridges
A lift descends into the first tiankeng, and a path follows the gorge floor under the three bridges before climbing out by steps and a shuttle; a half-day walk.
Furong Cave
A lit walkway leads through the main halls of the cave; guided visits explain the formations.
Longshuixia fissure
Walkways and stairs descend through the slot gorge along its stream.
Practical notes
- The gorge paths involve many steps and can be slippery after rain.
- Do not touch cave formations; they grow over thousands of years and are easily damaged.
- Wulong has rail and expressway links to central Chongqing; Fairy Mountain town has most accommodation.
- Chongqing's summer heat and humidity are intense; the high plateau is much cooler than the valleys.
Frequently asked questions
Sources
- South China Karst — UNESCO World Heritage Centre (retrieved 27 September 2026)
- Chongqing Municipal People's Government — Chongqing Municipal People's Government (retrieved 27 September 2026)
- South China Karst — World Heritage Outlook — IUCN (retrieved 27 September 2026)
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