砾石、毅力，还有一点 GPS 漂移。
路线库
Ha Giang的每条收录路线——距离、爬升、难度,以及包含所经爬坡的完整路线图。
1条路线
A 136-kilometer point-to-point ribbon of asphalt through Vietnam's far north, stacking 5,175 meters of relentless mountain climbing.
