Haku-san Sand Slope, Utsumi, Aichi Prefecture, c. 1940.

See also:
Sand skiing, Shirahama (White Sand) Beach, near Wakayama, c. 1930.

Caption (lower left): “The world’s number one sand ski resort, Hakusan Slope, a sand mountain with an elevation of 65 meters [~200 feet] above sea level. The sand is made up of fine-grained silica sand rarely seen on mountains, and is used by skiers for summer training without any danger.”