A1. Juyongguan Great Wall is the number one pass in China which is easy to access the actual Wall; it takes only 1 minute from the parkling lot to get on the Wall. It is most suitable for people who don't want to speed much energy in getting on the Wall. Juyongguan was built in a gap between two mountain peaks with only one road leading to Beijing, which determined its military significance in ancient times through many dynasties.

A2. Badaling Great Wall is one of the first sections of Great Wall in China that have been restored and opened to public. Also it is the most famous and popular section of Wall with Chinese. It could be crowded on weekends and holidays but it is the most typical Ming Great Wall in Beijing. There is an 18 kilometers long valley called “Guangou” from south to north in Changping district Beijing, with 4 passes along the valley named “Nankou, Juyongguan, Shangguan and Badaling”. They were of great strategic importance in defending Beijing.

A3. Mutianyu Great Wall is a beautiful section of the Wall in Huairou district of Beijing. As one of the best-preserved parts of the Great Wall, the Mutianyu Great Wall used to serve as the northern barrier, defending the capital and Ming tombs. It is slightly less touristy and crowded than Badaling with cable car, toboggan and chairlift services.

A4. Huanghuacheng Water Great Wall has historically been the northern gate of ancient Beijing City and also the important entrance to Ming Tombs. Later it was divided into three parts due to the construction of a dam in 1974, because the lower parts of Wall were submerged by water. It is a beautiful and peaful palce espeically between Apr. - Oct. with boats available to rent and it is more poluar with local people for outing.