Jade-colored Terraces in Phong Nha - Ke Bang Caves

A unique natural phenomenon occurs during the rainy season within the caves of Phong Nha - Ke Bang National Park. During this period, rainwater permeates deeply through the limestone mountains, flowing into the cave interiors. This process leads to the accumulation of water, which then fills the natural calcium pools formed within the caves. As these calcium pools become full, the water inside them transforms into a beautiful jade-green color, creating a stunning visual landscape. This phenomenon turns areas within the caves into natural "terraced fields" with their characteristic hue, attracting the attention of tourists and researchers. It serves as evidence of the rich and diverse cave ecosystem in Vietnam, particularly in the Phong Nha - Ke Bang region, renowned for its unique geological formations. This specific sight is only visible during the rainy season when sufficient water volume is present to produce this special color effect.

Key points
* Water permeates limestone mountains during the rainy season.
* This water fills calcium pools within the caves.
* The phenomenon creates a distinctive jade color.

Nguồn / Source: VnExpress - Du lịch