British brothers James and Thomas Lindesay have spent months traveling across the Great Wall of China on foot. They 1 3,263 kilometres, a remarkable achievement at any time.
Their 2 to complete this adventure came from their father, William Lindesay, who 3 along the Wall decades ago and attracted a great deal of media attention. Born in 1956 in Liverpool, William became 4 about the Wall later in his life. In 1987, he made the 5 in China by hiking the Wall. He has committed over 30 years to the protection of the structure, and has 6 ten books on the Wall based on his knowledge and experiences.
His action and books influenced his two sons, who now share his 7 in the Wall. In 2016, the Lindesay brothers flew drones（无人机） at many 8 along the Wall and edited video works on the 9 of the Wall, hoping to keep it safe from damage. Not 10 with merely documenting parts of the Wall, the young brothers 11 wanted to find a new way to experience the structure and finally they 12 hiking its length, following in their father's footsteps.
The brothers' trip was 13 than they had imagined. They met many difficulties. But 14 the great wonder was life-changing, which gave them a better15 of the structure and the history behind it.
