You can walk on the Great Wall of China at many points along its extensive length – around 5,500km of the world wonder constitutes what we think of as the wall, but if you add together all of its branches and trenches its full length extends to over 21,000km. Around the main tourist areas close to Beijing, the wall has been rebuilt, though there are many sections that lie in ruin . In the past the stone was often looted to build houses, and there are areas that are restricted and unsafe for walking. Our Walk the Great Wall holiday takes in several parts of the wall, including the point where it reaches the Bohai Sea at Old Dragon’s Head, towards the mountains at Jiaoshan Pass, a rugged and untampered section at Panjiakou and among the watch towers of Jinshanling.