Lu Qingfeng planned a "red route" for their trek, featuring visits to sites with a revolutionary legacy, including Yiyang Martyrs' Memorial Park, the former homes of Mao Zedong, Peng Dehuai and Liu Shaoqi, Hengshan Mountain and Jinggang Mountain.

To cultivate Lu Yue's ability to deal with people and things, Lu Qingfeng had Lu Ye make arrangements for meals and lodging throughout their travel.

The trio walked about 30 km on average per day. Lu Yue's skin suntanned when she finally reached their destination, but she didn't seem to care.

"The journey has taught me many things that cannot be learned from books and made me more independent. I think this is the true meaning of the trek," she said.