An around 20-kilometre-long river is captured still flowing in temperatures of less than -40C at northern China's A'ershan National Forest Park on November 22.<br /><br />The pretty video shows the river flowing as usual with steam rising up when everything else around it is frozen and covered in snow.<br /><br />Cows were drinking water from the unfrozen river and tourists can be seen rafting down the river as well. <br /><br />Since the river is located on the volcanic lava area, the geotherm means the river is too warm to freeze.