Photo taken on March 25 shows the train from Lanzhou, Gansu province, is entering Lhasa Railway Station. [Photo/Yao Haiquan]

Photo taken on March 25 shows tourists from Lanzhou, Gansu province, just arrived at Lhasa Station. [Photo/Yao Haiquan]

Photo shows that tourists from Guangdong province are taking photos at the Lhasa Railway Station. [Photo/Yao Haiquan]

Thanks to preferential policies for tourists, Tibet's tourism booms even in the off-peak season. From January to February, Nearly 775,300 visitors traveled to Tibet, up 45.9 percent from the previous year. Revenues generated by tourism reached 868 million yuan (about $138 million) with a year-on-year increase of 39.9 percent.

Tibet has launched the initiative of "winter tours in Tibet－enjoy the world's third pole" since February 1st. During that time, A-class tourist attractions in the region open to visitors for free. Besides, the preferential policies also cover transportation and accommodation.