Son Doong Cave, Natural cave system in Quang Binh, Vietnam.
The cave extends over 9 kilometers with a central passage measuring 200 meters in height and 150 meters in width, containing underground rivers and chambers.
Local resident Ho Khanh discovered the cave in 1991 while searching for agarwood, leading to its first exploration by British researchers in 2009.
The name Son Doong translates from Vietnamese as mountain river cave, reflecting the geological formation process through water erosion of limestone.
Access requires permits and guided tours through Oxalis Adventure Tours, with expeditions available from January to August before the rainy season begins.
Two large ceiling collapses allow sunlight to penetrate the cave interior, supporting the growth of an internal forest with trees reaching 50 meters tall.
Location: Quảng Bình
Elevation above the sea: 378 m
GPS coordinates: 17.45694,106.28750
Latest update: May 27, 2025 20:20
From moving stones in the desert to caves illuminated by glowworms, these places showcase natural phenomena and geological formations. The locations include pink lakes, underground caverns, mysterious stone circles, and volcanic features. These natural sites present unusual colors, shapes, and scientific phenomena across all continents
The underground world contains caves with crystals, limestone formations, and prehistoric art. These geological structures range from ice caves in Austria to marble chambers in Chile. Some caves house underground rivers, luminescent glowworms, or fossil deposits.
Vietnam contains remote temples, caves and natural areas. The landscape spans from rice terraces in Y Ty to Bai Dinh Temple. Visitors find natural caves like Son Doong and Hang En, historical sites like the Thang Long Citadel, and traditional villages in the Mekong Delta. The region presents Buddhist pagodas, sand beaches and waterfalls.
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