A spectacular drone video showed the frozen waterfalls forming in northern China's Tianmen Mountain National Forest Park.
In the beautiful clip, shot in Dalian City in Liaoning Province on December 25, 2018, one can see the waterfalls frozen into icicles on the side of the mountain.
According to one staff in the national forest park, it was not easy for them to create the scene as it was restricted by various factors, such as the temperature must be between -15C and -10C, otherwise the water would freeze rather than spray out to the height.
