Thien Duong Cave, Show cave in Phong Nha-Ke Bang National Park, Vietnam.
Thien Duong Cave is a limestone cave in Phong Nha-Ke Bang National Park featuring massive chambers connected by passages that extend deep underground. The interior spaces are remarkably large, with towering walls and spacious walkways that allow visitors to move through different sections.
The cave was discovered in 2005 by British explorers and underwent several years of detailed exploration. These expeditions revealed an extensive underground system recognized as one of the longest in the region.
The Vietnamese name Thien Duong translates to Paradise Cave, reflecting the local appreciation for the natural limestone formations within its chambers.
Reaching the cave requires walking forest trails totaling around 1.6 kilometers from the park entrance. Visitors can choose between climbing over 500 stone steps or taking a gentler path that is roughly half a kilometer long, depending on their fitness level.
Inside the cave, temperature remains stable throughout the year and differs significantly from conditions outside. This natural insulation keeps the underground environment consistently cool, creating a remarkable contrast with the forest above.
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