A splendid natural phenomenon took place in Sanjiangkou region, south China's Guangxi Zhuang Autonomous Region on August 31. Zuojiang and Youjiang rivers clashed and created a clear boundary with distinct yellow and green river water on each side, attracting many people to witness this spectacle.

Sanjiangkou is the intersection region of the Yongjiang River, Zuojiang River and Youjiang River. As recent weather in south China was dominated by typhoons and rains, the Youjiang River thus carried more sand. The higher sand content makes the water a muddy yellow color, therefore when it meets the clearer Zuojiang River, the boundary appears.

(All images via VCG)

(If you want to contribute and have specific expertise, please contact us at nature@cgtn.com.)