This long vertical formations in the ice, are created when gas and other substances gushing from the bottom of the lake freeze near the surface. 

 https://t.co/kPPeNUzHzW https://video.twimg.com/ext_tw_video/1627736542067232773/pu/vid/576x1024/buTGkPULoyu0JLiF.mp4?tag=12