Tourists take photos of snow sculptures at the Tsudome Site of the 71st Sapporo Snow Festival in Sapporo, Hokkaido, Japan, on Jan. 31, 2020. The snow festival kicked off on Friday. (Xinhua/Du Xiaoyi)

Tourists play at the Tsudome Site of the 71st Sapporo Snow Festival in Sapporo, Hokkaido, Japan, on Jan. 31, 2020. The snow festival kicked off on Friday. (Xinhua/Du Xiaoyi)

A girl plays at the Tsudome Site of the 71st Sapporo Snow Festival in Sapporo, Hokkaido, Japan, on Jan. 31, 2020. The snow festival kicked off on Friday. (Xinhua/Du Xiaoyi)

Tourists play at the Tsudome Site of the 71st Sapporo Snow Festival in Sapporo, Hokkaido, Japan, on Jan. 31, 2020. The snow festival kicked off on Friday. (Xinhua/Du Xiaoyi)

Tourists play at the Tsudome Site of the 71st Sapporo Snow Festival in Sapporo, Hokkaido, Japan, on Jan. 31, 2020. The snow festival kicked off on Friday. (Xinhua/Du Xiaoyi)