The Great Wall twists and turns a    1     the tops of mountain chains in n    2     China. It is m    3     than 4,000 kilometers l    4    . Building the wall took a long time. It began in the fifth century BC, and the wall finally took shape in the third century BC. From Beijing, you can visit the great wall at Badaling, kilometers north-west of the city.

The Great Wall at Badaling o    5     at 6:30 a.m. and closes at 5 p.m. in the summer. The scenery along the Li River in Guiling is just l    6     a beautiful p    7    . Take a boat t    8    , and you will be a    9     by the peaks along the r    10     and their reflections in the clear w    11    . Walking and cycling in Guiling is also great f    12    . Along the paths near the river you can see local village l    13    , and you can t    14     a mud bath in the n    15     caves.