Now in its fourth year, the Vietnam Mountain Marathon is Vietnam’s biggest trailing running event.
1,500 runners are set to take part this year, running mountain trails of 10km, 21km, 42km, 70km or a massive 100km in length.
The trails pass through remote parts of Sapa that are normally far beyond the reach of anybody but the colourfully dressed and welcoming ethnic minority people who call the area home.
Race among deep valleys filled with golden rice terraces and traditional villages with farmers and local kids cheering you along.
You don’t need to be fast to join Vietnam Mountain Marathon, but you will definitely need to be tough and have a big sense of adventure!