Shiga Kogen Tourism Association Official Website

Snow monsters are formed when water vapour or water droplets at temperatures below -5 degrees Celsius blow onto coniferous trees, freeze, and then snow gets in through the gaps and hardens.
In Japan, Zao and Hakkouda are famous for snow monsters, but of course you can also see them at Yokoteyama ski resort, the highest ski resort in Japan! (typically in February)