Passengers wait for their ride at Hangzhou East railway station in East China’s Zhejiang Province on April 30.

The May Day holiday from May 1 to May 4 this year will see a "tourism craze" with an estimated 160 million trips, predicted Ctrip, a leading online travel agency in China.

The railway operator expects some 68.2 million passenger trips from April 30 to May 4, up by 10.9 percent year-on-year, according to the China Railway Corporation.

The China Railway Corporation has arranged an additional 539 bullet trains and 156 regular trains during the holiday. (Photos: IC, VCG)

Visitors line up at the Place Museum in Beijing on April 30. Ahead of the holiday, many tourism spots have already seen an increase in the number of visitors.

Tourists line up to take bus to the Great Wall of Badaling at Deshengmen Bus Station in Beijing on April 29. (Compiled by Huang Jingjing)