Among those who have completed the entire journey on foot are:
1. William Edgar Geil: An American explorer and missionary, William Edgar Geil is considered the first person to walk the entire length of the Great Wall. He undertook this expedition in 1908-1909, covering a distance of approximately 8,000 kilometers (5,000 miles) from Shanhaiguan in the east to Jiayuguan in the west.
2. Yu Chunshun: A Chinese endurance athlete, Yu Chunshun completed a 12-year journey on foot along the Great Wall from 1984 to 1996. He covered the entire length of the wall, estimated to be around 21,196 kilometers (13,171 miles), and received widespread recognition for his feat.
3. Mike Buss: A British adventurer and author, Mike Buss walked the length of the Great Wall from 2007 to 2008. His journey covered approximately 6,350 kilometers (3,945 miles) from Jiayuguan in the west to Shanhaiguan in the east, and he shared his experiences in a book titled "Walking the Great Wall."
4. Liu Qiang: A Chinese ultramarathon runner, Liu Qiang completed a continuous run along the Great Wall in 2019. He covered the entire length of the wall, approximately 21,196 kilometers (13,171 miles), in 63 days, setting a new world record.
These are just a few examples of individuals who have undertaken and successfully completed the remarkable journey of walking the full length of the Great Wall of China.