Summer-Only Ski Resort at Mount Gassan, Japan, Opens Today, April 12 Tsukiyama Ski Area at Mount Gassan in Japan announced that it will open its ski season today, April 12. The Japanese summer-only ski resort is situated in the Yamagata Prefecture of Japanโs main island Honshu, about six hours north of Tokyo. Tsukiyama at Mount Gassan is one of six summer-only ski resorts in the world. Related: Unveiling the Six Spectacular […] Industry News Julia Schneemann | April 11, 2024 0 Comments