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natural heritage

Update news natural heritage

Massive 120-meter-deep sinkhole discovered in Phong Nha-Ke Bang
Vietnamnet global

Massive 120-meter-deep sinkhole discovered in Phong Nha-Ke Bang

Explorers have surveyed a giant sinkhole in Vietnam's Phong Nha-Ke Bang National Park, revealing a 120-meter-deep cavity with a floor stretching 250 meters, ancient trees and unusual geological formations.