How many kilometers does Shenzhen span from east to west?

9 kilometers. The coastline is about 4 kilometers in a straight line and crosses about 9 kilometers. The starting point is near the Tung Chung Bridge (because the park is being built near the Tung Chung Bridge, at present, the east-west journey starts from the Tianhou Palace in Tung Chung, where there are parking lots, shops and toilets). It is dominated by mountain roads and reef roads, and the coastline is beautiful along the way. It takes about 4 to 6 hours to cross, and the destination is No.4 Beach in Xichong, which is an "entry-level" outdoor hiking route.