Jiuzhaigou Valley in Sichuan province [Photo/]China Daily]

Best breathers

Ctrip has released a top 10 list of its most popular domestic "smog-escape routes" for January and February. (Prices may vary and include round-trip flights from Shanghai.)

1. Five-day group trip to Hainan province's Sanya (2,800-8,400 yuan)

2. Six-day trip to Sichuan province's Chengdu, Jiuzhaigou Valley, Dujiangyan and Huanglong (3,200-5,600 yuan)

3. Five-day individual trip to Sanya (2,300-5,900 yuan)

4. Four-day trip to Yunnan province's Lijiang (2,800-5,600 yuan)

5. Six-day trip to Guizhou province's Huangguoshu, Xijiang and Libo (2,900-4,700 yuan)

6. Five-day trip to Yunnan's Lijiang, Shangri-La and Yulong Snow Mountain (3,600-7,200 yuan)

7. Five-day trip to Yunnan's Xishuangbanna (5,200-13,000 yuan)

8. Five-day trip to Fujian province's Wuyi Mountains, Xiamen and Gulangyu Island (2,100-2,200 yuan)

9. Five-day trip to the Guangxi Zhuang autonomous region's Guilin, Yangshuo and Gudong Waterfall (2,050-4,400 yuan)

10. Seven-day trip to Heilongjiang province's Harbin and Yichun (4,500-5,300 yuan)