It is a bitumen snake in the heart of nature at more than 2000 meters high. It's called the Sky Highway. 270 bridges and 25 tunnels punctuate this route through China.

00:00 Yaxi highway
01:00 Highway Patrol
02:40 Engineering feat
04:04 Riding with the weather
06:07 A deserved break
08:05 A life on the road
12:21 On the tea route