Tourists visit the scenic spot Hukou Waterfall along the Yellow River in Shanxi, Central China, on May 10, 2016. A crystal clear green waterfall can be seen at the scenic spot. It is the result of a slowdown in river flow speed due to a shortage of rainfall in the upstream region since the end of April.[Photo/Xinhua]
Tourists visit the scenic spot Hukou Waterfall along the Yellow River in Shanxi, Central China, on May 10, 2016.
Tourists visit the scenic spot Hukou Waterfall along the Yellow River in Shanxi, Central China, on May 10, 2016.
