The waters of the limestone ponds and lakes in Huanglong sparkle with emerald green, ultramarine, bright yellow and pale blue. The area's limestone caverns also thrill the viewer with their mystical beauty. The basin of the limestone-encrusted Huanglong Valley, shimmering with a golden color that is acce-nted by the deep green of the surrounding virgin forest, looks like a huge yellow dragon flying down the mountain. With high-definition cameras capturing these and other superb views, this program uncovers the natural mechanism that has created this sculptured beauty, called one of the wonders of the earth.