Geographically, the Tianji Longmen Scenic Area—formerly known as Longmen Canyon—is a volcanic rock canyon. The scenic area has more than fifty peaks over 1,000 meters above sea level towering hundreds of meters over the valley floor. The valley is a typical "V"-shaped gorge with a very deep valley floor. Together the high mountaintops and deep gorge form an undulating valley and peak landscape. Each of the peaks in the scenic area is different in its own way. Every mountain peak has its own distinctive characteristics. There is a 1.8-kilometer-long boardwalk called "Flying Dragon in the Sky” which floats above the mountain landscape at nearly 1,000 meters above sea level. Walking along the boardwalk, visitors will find their feet wreathed by misty clouds. With the cliffs to either side, this is definitely a special experience.