Due to the construction of Gubeikou Watertown, the eastern section of Simatai Great Wall is closed permanently. However the western section is still open to hikers. The Simatai Great Wall is separated into eastern and western sections by a valley, with a rainbow-like chain bridge over the valley. The hills in the west are sloping gently, with 20 watchtowers remaining in good shape. The Simatai section of the Great Wall is one of the few sections to retain the original appearance of the Great Wall. The Great Wall at Jinshanling is one of the best preserved parts of the Great Wall with many original features and it is also famous for being one of the most photogenic sections of the Great Wall. This moderately challenging, three to five hour hike offers breathtaking views of the Great Wall from Simatai West to Jinshanling, snaking along the ridge of the mountains, taking you through crumbling, ancient watchtowers along the Wall.